.375 Flat Washers
Flat Washers, or just Plain Washers, are a flat annulus or ring, often of metal, used to spread the load from the head of a screwed fastening to the base material. Flat washers are used to increase the bearing surface of a nut or fastener's head thus spreading the clamping force over a larger area.
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Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .448 x .025 | .375 x .448 x .025 flat washer nylon thickness = .020/.025 id/od tolerance = +/-.002 | 491 |
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Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .490 x .087 | .375 x .490 x .087 flat washer nylon | 3900 |
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AFI | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .484 x .01 | .375 x .484 x .01 flat round washer ss () | 1189 |
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ACF | CA | Flat Washer | Nylon (Polyamide) | Plain | 0.375 x .500 x .031 | 0.375x.500x.031 nylon flatwasher | 1110 |
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ACF | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.375 x .500 x .005 | 0.375x.500x.005 s/s flatwasher | 600 |
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NAPPCO | TX | Flat Washer | Nylon (Polyamide) | Plain | .375 x .505 x .05 | .505 od x .375 id x .05 thick nylon fw (468-MICRO PLASTICS) (468-MICRO PLASTICS) (468-MICRO PLASTICS) | 4000 |
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Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .500 x .031 | .375 x .500 x .031 flat washer blk nylon | 63 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 x .5 x .015 | .375 x .5 x .015 flat washer nylon () | 2612 |
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Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .531 x .048 | .375x.531x.048 flat 18-8ss | 99 |
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B & K FAST | PA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .56 x .06 | .375 x .56 x.06 thk flat washers stainless b18.22.1 | 637 |
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GLF | OH | Flat Washer | Steel | Plain | 0.375 x 0.562 x 0.030 | 0.375x0.562x0.030 flat nyl b18.22.1 () () | 100 |
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SJS Prod | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .563 x .030 | .375 x .563 x .030 flat washer ss |
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Liberty | IL | Flat Washer | Copper | Plain | .375 x 9/16 x .032 | .375+x9/16-x .032 flat soft soft | 34 |
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BAYFASTCO | FL | Flat Washer | Steel | Plain | .375 x .562 x .062 | .375 x .562 x .062 flat washer | 98180 |
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General F | MI | Flat Washer | Steel | Plain | .375 x .562 x .012 | .375 x .562 x .012 low carbon fw plain b18.22.1 | 3469 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 x .570 x .026 | .375x.570x.026-.036 nylon flat washer bl () | 1000 |
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Komar | IL | Flat Washer | Steel | Nickel | .375 x .562 x .032 | .375x.562x.032 flat nickel | 5000 |
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American | NY | Flat Washer | Steel | Zinc/Yellow | .375 x .595 x .018 | flat zy | 80200 |
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SIS | AZ | Flat Washer | Nylon (Polyamide) | Plain | 0.375 x 0.593 x 0.032 | 0.375 idx0.593 odx0.032 thk nylon retaining | 4000 |
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Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .594 x .234 | .234 x .375 x .594 x .032 ret/wash. nyl. (1/4) 16fwrt250032 | 345 |
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QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .625 x .125 | .375x.625x.125 18-8ss flat b18.22.1 | 10000 |
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QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .625 x .125 | .375x.625x.125 18-8ss flat b18.22.1 | 5000 |
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MAINSOURC | NH | Flat Washer | Steel | Plain | .375 x .625 x .032 | fw .375 x .625 x .032 z | 5658 |
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MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .630 x .032 | flat | 500.0 |
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Century | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .625 x .001 301 | .375 x .625 x .001 301 stainless dfars | 1563 |
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ACF | CA | Flat Washer | Steel | Zinc/Clear | 0.375 x .625 x .030 | 0.375x.625x.030 steel flatwasher z/p | 356 |
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ACF | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.375 x .625 x .010 | 0.375x.625x.010 s/s flatwasher | 35 |
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Purchase | MO | Flat Washer | Steel | Nickel | .375 x .625 x .028 | .375 x .625 x .028 f/w stl nickel | 10000 |
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Century | FL | Flat Washer | Steel | Plain | 0.375 x 0.625 x 0.010 | flat washer 0.375 x 0.625 x 0.010 (18-8 STAINLESS DFARS) (18-8 STAINLESS DFARS) | 450 |
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Century | FL | Flat Washer | Steel | Plain | .375 x .625 x .005 | flat washer .375 x .625 x .005 (18-8 STAINLESS DFARS) (18-8 STAINLESS DFARS) | 7250 |
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Century | FL | Flat Washer | Steel | Plain | 0.375 x 0.625 x 0.015 | flat washer 0.375 x 0.625 x 0.015 (18-8 STAINLESS DFARS) (18-8 STAINLESS DFARS) | 175 |
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American | NY | Flat Washer | Steel | Nickel | .375 x .625 x .017 | flat pl. | 1500 |
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OBRIEN | OH | Flat Washer | Steel | Zinc/Clear | .375 x .625 x .035 | .375 id .625 od .035 thk f/w | 920 |
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Endries | WI | Flat Washer | Nylon (Polyamide) | Zinc/Clear | .375 x .625 x .032 | f/w .375x.625x.032 nylon blk rohs | 500 |
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Cal Fastenrs | CA | Flat Washer | Steel | Nickel | .375 x .625 x .030 | f/w | 7,000 |
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Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .625 x .032 | .375 id x .625 od x .032 thick flat | 500 |
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General F | MI | Flat Washer | Steel | Zinc/Clear | .375 x .625 x .025 | .375x.625x.025 fw zn b18.22.1 | 200 |
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UNEEDA | NJ | Flat Washer | Nylon (Polyamide) | Plain | .375 x .625 x .032 | nylon washer .375x.625x.032 | 8000 |
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Hayes | CA | Flat Washer | 316, 317, A4 Stainless | Plain | .375 x .625 x .025 | .375 x .625 x .025 316 ss flat washer | 400 |
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AFI | FL | Flat Washer | Steel | Plain | .375 x .625 x .024 | .375 x .625 x .024 flat washer steel () | 1572 |
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QCS | OR | Flat Washer | Nylon (Polyamide) | Plain | .375 x .625 x .032 | .375x.625x.032 flatwasher nylon essentra | 2500 |
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Komar | IL | Flat Washer | Steel | Nickel | .375 x .625 x .032 | .375x.625x.032 flat nickel | 2400 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 x .625 x .032 | .375x.625x.032 flat washer nylon () | 723 |
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Century | NY | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .625 x .005 | flat .375x.625x.005 18-8 s/s dfars | 7250 |
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Arden | WI | Flat Washer | Steel | Zinc/Clear | .375 x .625 x .028 | .375x.625x.028 fw stl zc | inquire |
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WDMB | IA | Flat Washer | Steel | Plain | .375 x .641 x .105 | flat st (zn+s) .375x.641x.105 (W0V0) | 10,314 |
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Century | FL | Flat Washer | Steel | Plain | .375 x .656 | .375 x .656 spec countersunk f/w washer (S/S) (S/S) () () | 40 |
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GLF | OH | Flat Washer | Steel | Zinc/Clear | 0.375 x 0.650 x 0.063 | 0.375x0.650x0.063 flat stl zc b18.22.1 () () | 2675 |
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ZAL INDUS | CA | Flat Washer | Steel | Plain | .375 x .680 x .100 .109 | .375 idx.680 odx.100th 12ga.plain steel | 599 |
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Komar | IL | Flat Washer | Steel | Zinc/Clear | .375 x .687 x .062 | .375x.687x.062 flat zinc | 200 |
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Century | FL | Flat Washer | Steel | Plain | .375 x .734 x .056 .071 | .375 x .734 x .056-.071 flat washer (STEEL) (STEEL) | 2000 |
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Komar | IL | Flat Washer | Steel | Zinc/Yellow | .375 x .734 x .065 | .375x.734x.065 flat zinc yellow | 363 |
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Century | FL | Flat Washer | Steel | Plain | .375 x .734 x .083 | ms27183-55 | 8 |
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QCS | OR | Flat Washer | Steel | Plain | .375 x .734 x .083 | .375 x .734 x .079 flat wshr stl cadmium ms27183-55 | 300 |
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Rapid | NY | Flat Washer | Steel | Plain | .375 x .734 x .083 | flat round steel c1005-c1020 .734 od x.375 id x.083 cadmium qq-p-416 MS27183-55 | 47224 |
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YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .375 x .750 x .062 | flt wshr.375id .750od .062tk-blk nylon 3/8 | 1103 |
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YANKEE | NH | Flat Washer | Steel | Plain | .375 x .750 x .060 | spec .375id .750od .060 | 4765 |
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YANKEE | NH | Flat Washer | Brass | Plain | .375 x .750 x .080 | spec .375id .750od .080 | 419 |
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Liberty | IL | Flat Washer | Steel | Zinc/Clear | .375 x .75 x .058 | .375 idx.75 odx.058 thick flat | 10,995 |
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ACF | CA | Flat Washer | Plastic | Plain | 0.375 x .750 x .031 | 0.375x.750x.031 delrin flatwasher | 1400 |
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Endries | WI | Flat Washer | Steel | Zinc/Clear | .375 x .750 x .156 | .375x.750x.156 flat zinc | 30 |
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SJS Prod | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x .750 x .061 | 3/5 f/w 375id x 750od x 061thk nylon |
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FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | 0.375 x 0.750 x 0.06 | 0.375 idx0.750 odx0.06 thick flat | 3,669 |
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Liberty | IL | Flat Washer | Steel | Plain | .375 x .750 x .083 | flat | 1,000 |
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Hayes | CA | Flat Washer | Steel | Nickel | .375 x 3/4 x .030 | .375 x 3/4 x .030 f/w steel nickel | 200 |
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BAYFASTCO | FL | Flat Washer | Steel | Plain | .375 x .750 x .050 | .375 x .750 x .050 flat washer | 312 |
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Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain | .375 x .750 x .031 | .375 idx.750 odx.031 thk f/w nylatron | 1180 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 x .75 x .062 | .375 x .75 x .062 sp flat washer nylon () | 4000 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 x .750 x .025 | .375 x .750 x .025 nylon flat washer () | 1771 |
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Hodell | OH | Flat Washer | Nylon (Polyamide) | Plain | .375 x .75 x .062 | flt wash nyln .375x.75x.062 | 2367 |
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Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain | .375 x .750 x .025 | .375 idx.750 odx.025 thk f/w blk | 739 |
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Mansco | MI | Flat Washer | Silicon Bronze | Plain | .375 x .750 x .0625 | .375 idx.750 odx.0625 thk f/w sintered bronze | 1800 |
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QCS | OR | Flat Washer | Fiber | Plain | .375 x .750 x .062 | .375x.750x.062 flatwasher fibre seastrom | 2114 |
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Komar | IL | Flat Washer | Nylon (Polyamide) | Plain | .375 x .750 x .200 | .375x.750x.200 flat nylon | 500 |
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Wurth | IN | Flat Washer | Steel | Plain | .375 x .812 x .060 .063 | .375 x .812 x .060-.063 thk flat washer 1074 steel rc58 min hardness | 30,000 |
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Mansco | MI | Flat Washer | Steel | Zinc/Yellow | .375 x .812 | .375 idx.812 odx.125 thk f/w znc 100/box | 200 |
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YANKEE | NH | Flat Washer | Steel | Plain | .375 x .875 x .125 | spec washer .375id .875od .125 steel | 8 |
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Jay-Cee | MI | Flat Washer | Steel | Zinc/Clear | .375 x 7/8 x .64 | .375x7/8x.64/.104 steel zinc plated per printernal 400442 | inquire |
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ACF | CA | Flat Washer | Plastic | Plain | .375 x .875 x .062 | .375x.875x.062 pvc washer | 600 |
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ACF | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.375 x .875 x .083 | 0.375x.875x.083 s/s flatwasher | 6274 |
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ACF | CA | Flat Washer | Nylon (Polyamide) | Plain | 0.375 x .875 x .040 | 0.375x.875x.040 nylon flatwasher | 300 |
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Century | FL | Flat Washer | Steel | Plain | .375 x .875 x .062 | .375 id x .875 od x .062 thk flat wash (316 S/S) (316 S/S) | 432 |
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Century | FL | Flat Washer | Steel | Plain | .375 x .875 x .062 | .375 id x .875 od x .062 thk flat wash (18-8 S/S) (18-8 S/S) | 1750 |
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American | NY | Flat Washer | Aluminum | Plain | .375 x .875 x .083 | ms15795-713 .375 x .875 x .083 f/w alum | 500 |
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SIS | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .875 x 0.062 | .375 idx.875 odx0.062 thick flat 18-8 s/s | 1800 |
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WDMB | IA | Flat Washer | Steel | Black Oxide | .375 x .875 x .068 | flat pa6.6 black .375x.875x.068 (W0M0) | 4,999 |
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General F | MI | Flat Washer | Nylon (Polyamide) | Plain | .375 x .875 x .25 | .375x.875x.25 saddle nyl 6/6 b18.22.1 | 2,100 |
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Mansco | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .875 | .375 idx.875 odx.125 thk f/w 18-8 s/s z9097ss 100/box | 150 |
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FastWare | Sask | Flat Washer | Steel | Plain | 0.375 x 0.875 x 0.156 | 0.375 idx0.875 odx0.156 thick flat | 2,191 |
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Liberty | IL | Flat Washer | Steel | Plain | 0.375 x .875 x .040 | 3/8 x .875 .050 flat / brass ms15795-951 brass brass | 47 |
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Liberty | IL | Flat Washer | Aluminum | Plain | .375 x .875 x .083 | 3/8 x 7/8 x .083 flat ms15795-713 aluminum | 277 |
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API | IA | Flat Washer | Steel | Zinc/Clear | .375 x .875 x .083 | flat jds24 zncl | 942 |
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Mansco | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x .875 x .078 | .375 id x .875 od x .078 thk f/w 18-8 s.s. | 600 |
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JHP Fasteners | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x 1.000 x .050 | flat .375x1.000x.050 s/s | 867 |
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MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x 1.00 x .060 | fw .375 x 1.00 x .060 ss | 208 |
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MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 x 1.00 x .062 | fw .375 x 1.00 x .062 ss | 82 |
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Marine Fasteners | FL | Flat Washer | Steel | Plain | .375 x 1.00 x .125 | .375x1.00x.125 abrasion-resistant cushioning b18.22.1 | 5000 |
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Irwin Ind | Ont | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | .375 x 1.00 x .125 | .375x1.00x.125 flat washer black neoprene b18.22.1 | 100 |
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WDMB | IA | Flat Washer | Steel | Zinc/Yellow | .375 x 1.00 x .187 | flat st (zy) .375x1.00x.187 drw (W000) | 897 |
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AIH | AZ | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | .375 x 1 x .125 | min sbr rubber cotton reinforced | 707 |
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AIH | AZ | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | .375 x 1 x .125 | min sbr rubber cotton reinforced | 707 |
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Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 x 1.00 x .062 | .375 x 1.00 x .062 flat washer nylon | 8 |
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Komar | IL | Flat Washer | Steel | Zinc/Black | .375 x 1.000 x .115 | .375x1.000x.115 flat black zinc | 3450 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 x 1.00 x .062 | .375x1.00x.062 flat washer nylon () | 800 |
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ZAL INDUS | CA | Flat Washer | Steel | Plain | .375 x 1.125 x .093 | .375 x 1.125 x .093 flat washer steel plain | 1,000 |
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Jackson | MS | Flat Washer | Steel | Zinc/Clear | .375 x 1.25 x .187 | .375 idx1.25 odx.187 special | 194 |
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Alma Bolt | MI | Flat Washer | Steel | Plain | .375 x 1.250 x .125 | .375 idx1.250 odx.125 tk flat (specials only) | 600 |
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Arden | WI | Flat Washer | Steel | Black Oxide | .375 x 1.375 x .134 | .375x1.375 x.134 fw stl hd blk | inquire |
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Arden | WI | Flat Washer | Steel | Black Oxide | .375 x 1.375 x .075 | .375x1.375 x.075 fw stl blk | inquire |
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QFC | TX | Flat Washer | Steel | Plain | .375 x 1.5 | .375 idx1.5 odx.125 thk neo. b18.22.1 | 3600 |
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ZAL INDUS | CA | Flat Washer | Steel | Plain | .375-.406 x 1.50 x 3/16 | .375-.406 x1.50 od x 3/16th flat washer steel plain | 400 |
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YANKEE | NH | Flat Washer | Steel | Plain | .375 x 1.75 x .058 | spec .375id 1.75od .058 | 86 |
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YANKEE | NH | Flat Washer | Steel | Plain | .375 x 1.75 x .120 | spec .375id 1.75od .120 | 1370 |
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Komar | IL | Flat Washer | Steel | Plain | .375 x 2.875 x .062 | .375x2.875x.062 flat | 3900 |
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Olander | CA | Flat Washer | Fiber | Plain | .375 x 4 x .032 | 4 x .375 od x .032 thk f/w fibre () () | 2923 |
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Olander | CA | Flat Washer | Fiber | Plain | .375 x 6 x .032 | 6 x .375 od x .032 thk f/w fibre () () | 1417 |
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Olander | CA | Flat Washer | Steel | Plain | .375 x 6 x .031 | 6x.375 odx.031 thk f/w nyl () () | 5863 |
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Olander | CA | Flat Washer | Fiber | Plain | .375 x 6 x .062 | 6 x .375 od x .062 thk f/w fibre () () | 7855 |
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IRF | NJ | Flat Washer | Steel | Zinc/Clear | .375 x 060 x .196 | plate | 11350 |
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Olander | CA | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | .375 x 8 x .031 | 8 x .375 od x .031 thk f/w teflon () () | 5062 |
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Olander | CA | Flat Washer | Fiber | Plain | .375 x 10 x .062 | 10 x .375 od x .062 thk f/w fibre () () | 2890 |
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Century | NY | Flat Washer | Steel | Plain | .375 x 015 x .151 | .151x.375x015 flat seastrom seastrom | 9000 |
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Century | FL | Flat Washer | Steel | Plain | .375 x 015 x .151 | .151 x .375 x 015 flat seastrom 5610-14-15 | 9000 |
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Century | FL | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | .375 | nas1149e0632p | 1205 |
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Century | FL | Flat Washer | Steel | Plain | .375 | ms9549-12 | 76 |
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Century | FL | Flat Washer | Steel | Plain | .375 | ms21299-6 | 665 |
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Century | FL | Flat Washer | Steel | Plain | .375 | ms9320-12 | 621 |
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Mansco | MI | Flat Washer | Steel | Phosphate | .375 | .375/.437 idx.969/1.031 odx.1196 thk f/w gray phos & oil | 500 |
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SIS | AZ | Flat Washer | Nylon (Polyamide) | Plain | .375 x . x .032 | .375x.194x.032 flat black | 4400 |
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SJS Prod | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 | f/w nylon .375od/.219id/.125thk |
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ZAL INDUS | CA | Flat Washer | Nylon (Polyamide) | Plain | .375 | .375 od x .194 id x .094 thick nylon washers | 600 |
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Kanebridge | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .375 | .375-.875 military flat washer 300 series stainless steel dfar black ox ms15795-813b | 12.500 |
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Kanebridge | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.375 | 0.375 type-b flat washer regular 300 series stainless steel dfar made in usa | 25,000 |
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Kanebridge | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.375 | 0.375 type-b flat washer wide 300 series stainless steel dfar made in usa | 6.250 |
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Kanebridge | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.375 | 0.375 type-b flat washer narrow 300 series stainless steel dfar made in usa | 50,000 |
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AIH | AZ | Flat Washer | Steel | Plain | .375 | 3/8 flat ams 5510 MS9549-12 | 432 |
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Mansco | MI | Flat Washer | Steel | Zinc/Clear | .375 | wx.75lx.06thk w/7/32 hole oval f/w 4000/box | 2240 |
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Hewes | NY | Flat Washer | Steel | Plain | .375 | flat washer | 17 |
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AFI | FL | Flat Washer | Nylon (Polyamide) | Plain | .375 | .375 odx.194 x.093 blk nylon flat washer () | 1300 |
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