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.
Flat Washer (b18.22.1), showing 200, (click on any line for more information)
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Endries | WI | Flat Washer | Steel | Zinc/Clear | .188 x .500 x .040 | #8 regular series type-b flat washer zinc .188x.500x.040 | 8000 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain | 17 | 17w06255 .250x.625x.062 nylon flat washer natural (micro) | 4000 |
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| Endries | WI | Flat Washer | Fiber | Plain | M3 | 3mm fiber flat washer 3.2x7x.5mm | 2770 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain | .410 x 1.031 x .062 | .410x1.031x.062 nylon retainer washer | 3000 |
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| Global | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0.227 x 0.500 x 0.040 | flat 0.227 idx0.500 odx0.040 close tolerance ss 18-8/pa close tolerance ss 18-8/pa | 706 |
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| Global | CA | Flat Washer | Steel | Black Oxide | 5702-88-30-bo seastrom flat rnd st/ 0.438 odx0.030 thx0.209 id 0.438 odx0.030 thx0.209 id | 794 |
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| Cal Fastenrs | CA | Flat Washer | 316, 317, A4 Stainless | Plain | .156 x .312 x .032 | .156x.312x.032 flat 316 stainless steel id&od +.000/-.005 thkns +/-.004 id&od +.000/-.005 thkns +/-.004 | 400 |
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| Cal Fastenrs | CA | Flat Washer | Brass | Plain | 1/4 | 1/4 small pattern f/w brass 14-s approx 420pcs per pound 14-s approx 420pcs per pound | 290 |
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| METRO BOL | null | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .401 ID x .652 OD x .028 .036 THK | .401 id x .652 od x .028-.036 thk flat washer,321 stainless steel - high temp, ms9549-12 | 9,105 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .190 x .335 x .032 | f/w dyed blue 17w03351blue | 1,500 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .265 x .490 x .075 | .265 id x .490 od x .075 thck. spring | 4,000 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .174 x .375 x .032 | ms960-c8 .174 x .375 x .032 s.s f/w 304ss | 50 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | ms15795-803 .125 x .250 x .022 s.s f/w 304ss | 175 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .578 x 1.062 x .062 | .578 id x 1.062 od x .062 thick 18-8 304 f/w an960c916 | 19 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 | ms15795-819 .562 x 1.375 x .109 s.s f/w 304ss | 800 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .188 x .375 x .049 | .18-8 304 s/s id x .375 od x .049 thick f/w - dfars compliant | 375 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Black Oxide | .203 x .438 x .063 | ms960-10 .203 x .438 x .063 f/w - | 2,680 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .656 x 1.3125 x .19 .24 | .656id x 1.3125od x .19-.24th 18-8 304 f/w | 50 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .438 x 1.000 x .083 | ms15795-815 .438 x 1.000 x .083 s.s f/w | 15 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .265 x .500 x .063 | an960-416 .265 x 500 x .063 f/w | 500 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .094 x .250 x .03 | an960-c2l .099 x .250 x .016 s.s f/w 304ss | 2,257 |
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| Cal Fastenrs | CA | Flat Washer | Aluminum | Plain | .390 x .625 x .063 | ms960-d616 .390 x .625 x .063 alum f/w | 700 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .174 x .375 x .016 | ms960-c8l .174 x .375 x .016 s.s f/w 304ss | 80 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .125 x .250 x .022 | ms27183-3 .125 x .250 x .022 i- f/w | 32,000 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 | ms51859-2 .125 id x .281 od x .047 thick- | 2,670 |
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| Cal Fastenrs | CA | Flat Washer | Brass | Plain | .255 x .495 x .022 | an960-b416 1/4 flats | 300 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6 | ms15795-805 .156 x .312 x .035 s.s f/w 304ss | 600 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .203 x .438 x .032 | ms960-c10l .203 x .438 x .032 s.s f/w | 3,200 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #4 | ms15795-803b .125 x .250 x .022 s.s f/w-black 304ss | 700 |
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| Century | FL | Flat Washer | Steel | Plain | 5893842 washer | 24 |
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| Century | FL | Flat Washer | Steel | Plain | 5893829 washer | 4 |
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| MidStates | MI | Flat Washer | Steel | Plain | 5/8 x 7 | 5/8x7/8 f/w .015 thk | 38 |
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| MidStates | MI | Flat Washer | Nylon (Polyamide) | Phosphate | 5/16 x 1/2 x .093 | mw16fw312 blk f/w | 66 |
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| MidStates | MI | Flat Washer | Plastic | Plain | 1/2 | pvc flat | 13236 |
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| MidStates | MI | Flat Washer | Copper | Plain | 3/16 back up | 110 |
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| MidStates | MI | Flat Washer | Steel | Plain | mqtm-26331 deburring tool | 1 |
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| MidStates | MI | Flat Washer | Steel | Plain | 1/2 x 1 1 | 1/2x1 1/4 f/w .187 thk | 473 |
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| MidStates | MI | Flat Washer | Steel | Plain | 1/2 x 5 | 1/2x5/8 f/w .091 thk nyl | 930 |
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| MidStates | MI | Flat Washer | Steel | Plain | 98028 guide | 13 |
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| MidStates | MI | Flat Washer | Copper | Plain | 1/8 back up | 627 |
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| MidStates | MI | Flat Washer | Steel | Plain | 96007 pivot pin | 2 |
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| MidStates | MI | Flat Washer | Copper | Plain | 21/32 | f/w | 232 |
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| MidStates | MI | Flat Washer | Steel | Plain | 6 x 1/2 x 1 8 | s deburring wheel | 3 |
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| MidStates | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M27 | f/w 18-8 | 24 |
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| MidStates | MI | Flat Washer | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 3/8 | f/w monel | 14 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 x 1 15/32 x .134 | 3/4 x 1 15/32 x 0.134 ms15795-822 flat washer 18-8 stainless | 41.0 |
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| Cal Fastenrs | CA | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain | .265 x .500 x .063 | ms960-c416 .265 x .500 x .063 s.s. f/w 410ss | 480 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10 | ms15795-846 18-8 304 f/w 304ss | 100 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .149 x .375 x .03 | an960-c6l flat 304ss | 2,400 |
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| Liberty | IL | Flat Washer | Steel | Plain | AN961-416 | 400 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 10 x 3/8 x 1/16 | thick flat 18-8 s/s | 1,500 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .505 x .870 x .022 | an960-c816 1/2 x 7/8 flat 18-8 304 304ss washer stainless steel | 575 |
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| Liberty | IL | Flat Washer | Steel | Plain | #6 | an960-6l #6 flat | 400 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .630 x 1.183 x .053 | 5/8 x 1-3/16 x 1/16 flat 18-8 s/s 304ss AN960-C1016 | 540 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .312 x .032 | an960-c4 flat 304ss | 1,150 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .149 x .375 x .03 | an960c6l 304ss | 1,150 |
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| Liberty | IL | Flat Washer | Steel | Plain | 3/8 | an960-616l | 500 |
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| Liberty | IL | Flat Washer | Steel | Plain | .765 x 1.313 x .090 | an960-1216 | 100 |
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| Liberty | IL | Flat Washer | Steel | Plain | .125 x .312 x .016 | an960-4l flat 1/8 x 5/16 x .015 5/16 x .015 | 5,290 |
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| Liberty | IL | Flat Washer | Steel | Plain | .390 x .625 x .032 | an960-616 | 992 |
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| Liberty | IL | Flat Washer | Steel | Plain | .032 | an960-c1616l 1 flat stainless stainless steel | 280 |
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| Liberty | IL | Flat Washer | Steel | Plain | .265 x .500 x .063 | an960-416 1/4 flat .265 id +/-.010 x .500 +.020/-.005 x .063 thick cad steel cad yellow | 3,925 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .318 x .557 x .053 | an960-c516 5/16 x 9/16 flat 18-8 304 304ss washer stainless steel | 500 |
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| MESAFAST | CA | Flat Washer | 316, 317, A4 Stainless | Plain | 7/16 x 1 1/8 | 7/16x1-1/8 od comml flat 316 stainless | 5,000.0 |
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| IRF | NC | Flat Washer | Steel | Zinc/Clear | #12 x .1 x .046 | 2,900 |
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| MastBolt | OH | Flat Washer | Grade 5 | Galvanized | 1-1/8 hardened 3.15 od 1.181 od .314 thick gr.5 and | 400 pcs |
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| BHAM | GA | Flat Washer | Duplex Stainless (2205, Ferralium etc.) | Plain | 3/4 x 100 | 3/4 z100 super duplex stainless flat s b18.22.1 | 100 |
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| BHAM | GA | Flat Washer | 316, 317, A4 Stainless | Plain | 5/8 x 1 3/4 | 5/8x1 3/4 od 316 ss flat b18.22.1 | 14 |
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| BHAM | GA | Flat Washer | 316, 317, A4 Stainless | Plain | 5/8 x 1 3/4 | 5/8x1 3/4 od 316 ss flat b18.22.1 | 67 |
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| BHAM | GA | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 3/4 17-4 h1150 flat s 1.5od b18.22.1 | 52 |
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| BHAM | GA | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/8 x 1 1/4 | 5/8x1 1/4 od hastelloy c276 flat b18.22.1 | 10 |
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| BHAM | GA | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/8 x 1 1/4 | 5/8x1 1/4 od hastelloy c276 flat b18.22.1 | 45 |
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| BHAM | GA | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/8 x 1 1/4 | 5/8x1 1/4 od hastelloy c276 flat b18.22.1 | 7 |
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| BHAM | GA | Flat Washer | Duplex Stainless (2205, Ferralium etc.) | Plain | 7/8 | 7/8 duplex 2205 stainless flat s b18.22.1 | 21 |
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| BHAM | GA | Flat Washer | Duplex Stainless (2205, Ferralium etc.) | Plain | 1/2 | 1/2 duplex 2205 stainless flat s b18.22.1 | 738 |
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| BHAM | GA | Flat Washer | Duplex Stainless (2205, Ferralium etc.) | Plain | 5/8 | 5/8 duplex 2205 stainless flat s b18.22.1 | 256 |
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| BHAM | GA | Flat Washer | Duplex Stainless (2205, Ferralium etc.) | Plain | 1 | 1 duplex 2205 stainless flat s b18.22.1 | 48 |
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| BHAM | GA | Flat Washer | Duplex Stainless (2205, Ferralium etc.) | Plain | 1 1/8 | 1 1/8 duplex 2205 stainless flat s b18.22.1 | 5 |
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| BHAM | AL | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 1.625 x 3 x .165 | 1.625idx3 odx.165tk 410s/s | 70 |
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| BHAM | AL | Flat Washer | Steel | Plain | 1 3/4 x 3 1/4 x 5/32 | 1-3/4idx3-1/4odx5/32tk st | 191 |
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| BHAM | AL | Flat Washer | Fiber | Plain | 3/4 x 1 1/8 x 125 | 71 |
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| BHAM | AL | Flat Washer | Steel | Plain | 2- x 4 1/4 x 1/2 | 2-idx4-1/4-odx1/2 tk f/w | 16 |
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| BHAM | AL | Flat Washer | Nylon (Polyamide) | Black Oxide | #2 x 1/4 x 032 | tk black f/w | 5,000 |
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| BHAM | AL | Flat Washer | Steel | Cadmium/Yellow | 960-816 1/2 | an yel/cad flat | 2,009 |
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| BHAM | AL | Flat Washer | Nylon (Polyamide) | Plain | .406- x 1.00 x .062 | .406-idx1.00-odx.062-tk f/w | 2,300 |
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| BHAM | AL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 300ser ss flat 079-093 | 260 |
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| Class C | MN | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/16-1 1/8 x .062 | 7/16 flat s/s (1-1/8 odx.062 thk) | 50 |
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| Class C | MN | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-1 1/2 x .078 | 5/8 flat s/s (1-1/2 odx.078 thk) | 50 |
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| Class C | MN | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-1 1/4 x .062 | 1/2 flat s/s (1-1/4 odx.062 thk) | 50 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | .218 x .625 x .125 | micro plastics nylon | 5770 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 1/4 | micro plastics retaining nylon | 7240 |
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| BAYFASTCO | FL | Flat Washer | Steel | Zinc/Clear | 1/4 | flat type-b regular zin | 4704 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 1/4 | micro plastics retaining nylon black | 3500 |
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| BAYFASTCO | FL | Flat Washer | Steel | Cadmium | 1/4 | flat type-b wide cad | 1108 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 1/4 | micro plastics .257 x .500 x .032 nylon | 1900 |
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| BAYFASTCO | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .250 x .688 | ms15795-851 commercial equal | 500 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | .257 x .750 x .062 | micro plastics nylon black | 1000 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | .257 x .875 x .062 | micro plastics nylon | 1290 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 5/16 | micro plastics .317 x .500 x .062 nylon | 1081 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 5/16 | micro plastics retaining nylon | 1400 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 1/2 | micro plastics .505 x .750 x .093 nylon | 550 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | 1/2 | micro plastics .505 x .750 x .062 nylon | 800 |
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| BAYFASTCO | FL | Flat Washer | Fiber | Plain | 3208 | 3208 keystone | 24500 |
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| BAYFASTCO | FL | Flat Washer | Nylon (Polyamide) | Plain | #6 | micro plastics .140 x .312 x .02 nylon | 1150 |
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| BAYFASTCO | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .115 x .209 x .016 | nas620-c4l | 3973 |
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| OBRIEN | OH | Flat Washer | Steel | Zinc/Clear | 5/16 | contact regular series 65+ac0-08+ac0-21 zc | 3435 |
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| OBRIEN | OH | Flat Washer | Steel | Plain | an960+ac0-6 washer | 40 |
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| OBRIEN | OH | Flat Washer | Steel | Plain | 12/12+ac0-1/4 prod dec | 500 |
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| OBRIEN | OH | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | .28 | .28 id+ads-.6875 od+ads-.125 thk rubber f/w | 800 |
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| OBRIEN | OH | Flat Washer | ms16208+ac0-57 | 17 |
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| OBRIEN | OH | Flat Washer | Steel | Plain | .125 | flat .125 MS15795+AC0-804 | 490 |
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| OBRIEN | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | +ACM-4 F/W SMALL OD S/S MS15795+AC0-803 | 495 |
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| OBRIEN | OH | Flat Washer | Steel | Plain | washer ms15795+ac0-852 | 96 |
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| OBRIEN | OH | Flat Washer | Steel | Plain | washer ms27183+ac0-8 | 75 |
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| OBRIEN | OH | Flat Washer | Nylon (Polyamide) | Plain | ns51859+ac0-6 nylon washer ms51859+ac0-6 | 218 |
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| OBRIEN | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 620 | +acm-4 s/s f/w nas620+ac0-4 NAS620+AC0-C4 | 400 |
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| OBRIEN | OH | Flat Washer | Brass | Plain | +acm-12 flat+ads- | 72 |
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| KBS | TN | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 7/8 | 3/8 x 7/8 commercial flat/w s/s wshrs ` wshrs` b18.22.1 | inquire |
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| GUIDON | TX | Flat Washer | Steel | Zinc/Clear | #8 | TYPE B NARROW | 4,000 |
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| GUIDON | NJ | Flat Washer | Steel | Zinc/Clear | .266 x 1/2 x .0465 | flat washer | 2,200 |
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| GUIDON | NJ | Flat Washer | Steel | Zinc/Clear | .250 x 3/8 x .025 | flat washer | 2,200 |
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| GUIDON | NJ | Flat Washer | Nylon (Polyamide) | Plain | 1.075 x 2 1/2 x .125 | flat washer | 1,850 |
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| GUIDON | NJ | Flat Washer | 316, 317, A4 Stainless | Plain | 10 x 7/16 x .032 | 316 STAINLESS STEEL | 9,900 |
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| GUIDON | NJ | Flat Washer | 316, 317, A4 Stainless | Plain | .690 x 1 x 3/16 | 316 STAINLESS STEEL | 492 |
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| GUIDON | NJ | Flat Washer | Plastic | Plain | .200 x 5/16 x .025 | TEFLON | 4,000 |
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| GUIDON | NJ | Flat Washer | Brass | Plain | .787 x 1 .417 x .059 | 2,150 |
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