Flat Washer (ASME 18.22.1)
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 | Plain | #10 | 10 washer retainer 16fwrt010032 | 512 |
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| Endries | WI | Flat Washer | Steel | Plain | .375 x .875 x .062 | .375x.875x.062 steel flat washer plain | 18000 |
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| Endries | WI | Flat Washer | 316, 317, A4 Stainless | Plain | 3/4 | 3/4 f/w .765 id x 1.3 12 od x .090 th ty 316 stainless | 12 |
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| Endries | WI | Flat Washer | Fiber | Plain | .140 x .250 x .062 | f/w .140 x .250 x .062 fibre rohs | 57 |
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| MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | cobham 1801-0109 (c/s .145x.350x.060 ss) | 35 |
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| MAINSOURC | NH | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | #10 | nas1149e0332r (#10 a286) | 50 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 flt wshr type-b narrow 316 ss | 30 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 flt wshr tbn dfars 316 ss | 270 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 flt wshr tbr dfars 316 ss | 300 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain | .120 x .280 x .030 | #4 flt wshr (.120x.280x.030) nylon | 600 |
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| RePneu To | MI | Flat Washer | Steel | Plain | -deflector moulding | 35 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 2 |
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| RePneu To | MI | Flat Washer | Nylon (Polyamide) | Plain | 1/8 | 1/8 nylon | 1 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 20 | (ram guide) xtn20 | 3 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 3 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 20 |
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| TownCountry | AR | Flat Washer | Steel | Zinc/Clear | M6 | M06 flat hv140 zinc | 50 |
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| Jackson | MS | Flat Washer | Grade 8 | Plain | 2 bolt size 2.125 id x 3-3/4 od .305/.330 thick grade 8 xtra thick flatwasher plain finish | 26 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 4 mm metric flat washer a-4 stainless | 207 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 5 mm metric flat washer a-4 stainless | 688 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 6 mm metric flat washer a-4 stainless | 601 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 8 mm metric flat washer a-4 stainless | 1345 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 10 mm metric flat washer a-4 stainless | 2965 |
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| Jackson | MS | Flat Washer | Grade 5 | Zinc/Yellow | 435/.445 id x 2.50 od x .114/.122 thick special washer low carbon zinc & yellow plated | 160 |
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| Jackson | MS | Flat Washer | Steel | Zinc/Clear | 10.5 mm id x 25 mm od x 4 mm thick special washer zinc plated | 100 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 1 x 2-1/2 od flat washer 316 stainless 1.084 id x .12 +/-thick | 140 |
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| Weaver | WA | Flat Washer | Steel | Cadmium | 1/4 x 0.625 od flat washer cadmium mil-spec | | 4355 |
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| Weaver | WA | Flat Washer | Steel | Cadmium | 5/16 x 0.688 od flat washer cadmium mil-spec | | 3441 |
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| Weaver | WA | Flat Washer | Steel | Plain | .188 x .375 x .049 | #8 x 0.375 od flat cadmium mil-spec MS27183-7 | 4822 |
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| Jackson | MS | Flat Washer | Steel | Zinc/Clear | m16 metric flat washer 200 hv zinc clear | 3218 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Clear | M12 | m12 metric flat washer 200 hv (for 10.9 bolt) zinc clear | 9524 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | M20 | 20 mm metric flat washer a-4 stainless | 9 |
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| Jackson | MS | Flat Washer | 316, 317, A4 Stainless | Plain | 1.084 x 2 1/2 x .315 | 1.084 id x 2 1/2 od x .315 thick flat washer special order 316 stainless steel | 165 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M36 | m36 metric flat washer 200 hv (for 10.9 bolt) zinc yellow | 385 |
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| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Clear | M42 | m42 metric flat washer 200 hv (for 10.9 bolt) zinc clear | 78 |
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| Jackson | MS | Flat Washer | Steel | Zinc/Clear | 3/16 | 3/16 steel zinc plated back up washer for rivets | 10000 |
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| Jackson | MS | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 1 | 1 bolt size x 2 od hastelloy c276 flat washer plain | 34 |
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| Jackson | MS | Flat Washer | Steel | Zinc/Yellow | fail | .378 id x .887 od x 085/.103 thickness special washer yellow plated | 1039 |
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| TownCountry | AR | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10 | m10 flat washer s.s. a2 | 398 |
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| Jackson | MS | Flat Washer | Brass | Plain | 1 x 1.50 x 1/8 | 1 id x 1.50 od x .125 thick special brass washer | 193 |
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| OneMonroe | MA | Flat Washer | Nylon (Polyamide) | Plain | nylon retaining washer.391x.235x.152x032 | 1470 |
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| OneMonroe | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125-.250 | .125-.250 ms15795 military flat washer 300 series stainless steel dfar 10000/carton | 572 |
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| OneMonroe | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125-.312 | .125-.312 ms15795 military flat washer 300 series stainless steel dfar 5000/carton | 200 |
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| OneMonroe | MA | Flat Washer | Aluminum | Plain | 1/4 | flat washer size 1/4 thickness 1/16 aluminum alloy (2024-t3 | 426 |
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| OneMonroe | MA | Flat Washer | Nylon (Polyamide) | Plain | washer nylon | 157 |
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| OneMonroe | MA | Flat Washer | Nylon (Polyamide) | Plain | washer nylon | 70 |
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| OneMonroe | MA | Flat Washer | Fiber | Plain | #10 | #10 flat washer 200x500x062 fiber | 27245 |
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| OneMonroe | MA | Flat Washer | Nylon (Polyamide) | Plain | #8 | #8 retaining washer nylon .062 thk | 18000 |
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| OneMonroe | MA | Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 flat washer 265x500x050 rohs stl z/cl | 17800 |
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| OneMonroe | MA | Flat Washer | Steel | Black Oxide | M3.2 | m3.2 flat washer steel black oxide din 433 | 1000 |
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| OneMonroe | MA | Flat Washer | Steel | Black Oxide | .323 x .404 x .030 | speed washer .404x.323x.030 steel black oxide | 11600 |
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| OneMonroe | MA | Flat Washer | Steel | Plain | M16 | washer special m16 roof | 10271 |
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| OneMonroe | MA | Flat Washer | Phosphor Bronze | Plain | 1/2 | 1/2 flat washer 560x735x025 phos brnz | 10000 |
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| OneMonroe | MA | Flat Washer | Fiber | Plain | 1/2 | 1/2 flat washer 531x1.25x062 fiber blk | 8100 |
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| OneMonroe | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .192 x .360 x .015 | #10 flat washer .192x.360x.015 half hard stainless | 6000 |
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| OneMonroe | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #5 | #5 fw ss blk ox .135x.240x.015 | 5000 |
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| OneMonroe | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M4 | m4 flat washer ss din 125a | 3670 |
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| OneMonroe | MA | Flat Washer | Phosphor Bronze | Plain | .420 x .540 x .025 | 3/8 fw phos bronze .420x.540x.025 | 2500 |
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| OneMonroe | MA | Flat Washer | Nylon (Polyamide) | Plain | 5/8 | 5/8 flat washer 671x937x020 nylon | 1475 |
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| OneMonroe | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | 5/16 | 5/16 flat washer 320x700x030 ss blk ox | 1000 |
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| Kanebridge | IL | Flat Washer | Steel | Cadmium | .562 x 1.375 x .109 | .562-1.375 military flat washer cadmium ms27183-19 | 25,000 |
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| RePneu To | MI | Flat Washer | Steel | Zinc/Clear | M16 | M16 thick flat zinc cr+3 din 7349 | 159 |
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| RePneu To | MI | Flat Washer | Steel | Plain | s kit | 3 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 180 | hermetic -rac180 | 4 |
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| RePneu To | MI | Flat Washer | Nylon (Polyamide) | Plain | .0281 x .0738 x .0062 | nylon f/w .0738x.0281x.0062 | 1600 |
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| RePneu To | MI | Flat Washer | Steel | Plain | .312 x .875 x .062 | lexan .312x.875x.062 | 11199 |
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| RePneu To | MI | Flat Washer | Steel | Plain | WASHER M95310 | 6 |
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| RePneu To | MI | Flat Washer | Steel | Plain | wiper retainer | 11 |
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| RePneu To | MI | Flat Washer | Steel | Plain | spring retainer (front) | 199 |
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| RePneu To | MI | Flat Washer | Steel | Plain | wiper retainer | 7 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 10 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 3/16 | 3/16 steel back up | 40000 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 2 | urethane xt2 | 48 |
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| RePneu To | MI | Flat Washer | Steel | Plain | 1 | urethane xt1 | 53 |
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| RePneu To | MI | Flat Washer | 316, 317, A4 Stainless | Plain | M8 | M8 flat a4 stainless din 125a | 800 |
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| RePneu To | MI | Flat Washer | 316, 317, A4 Stainless | Plain | M12 | M12 flat a4 stainless din 125a | 600 |
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| RePneu To | MI | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | M18 flat a4 stainless din 125a | 550 |
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| RePneu To | MI | Flat Washer | 316, 317, A4 Stainless | Plain | M22 | M22 flat a4 stainless din 125a | 465 |
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| OneMonroe | NC | Flat Washer | Brass | Plain | #10 x 7/16 | #10 x 7/16 flat washer brass | 175 |
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| OneMonroe | NC | Flat Washer | Brass | Plain | #10 x 1/2 | #10 x 1/2 flat washer brass | 100 |
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| Brikksen | FL | Flat Washer | Plain | #8 | #8 commercial flat washer with | 1900 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | per dwg a1441-3/8 d wsh-rework ms15795-815 | 283 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | make per navsea dwg and ms9768-10 parts must be passivated to qq-p-35 and the processing must be performed by a lockheed approved processor. | 25 |
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| OneMonroe | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6 | washer flat #6 ss .140 id .266 od x .032 thick. tolerances id + .010/--.001 od .010 thk 003 | 8660 |
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| OneMonroe | NC | Flat Washer | Steel | Zinc/Clear | .203 x .688 x .047 | flat washer .203 x .688 x .047 steel zinc | 184 |
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| OneMonroe | NC | Flat Washer | Aluminum | Plain | f/w alum w/chem film.38x.740/.750x.030/.034 print | 500 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | fail | lathing washer (1 with holes) | 500 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | 1 7/16 | 1-7/16 insulation washer | 1100 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | .160 x .535 x .032 | seastrom sea 5602-75-32 #6fl fbr washer .160x.535x032 | 638 |
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| OneMonroe | NC | Flat Washer | Nylon (Polyamide) | Plain | .125 x .310 x .010 | seastrom sea 5610-10-10 #4fl nyl washer .125x.310x.010 | 450 |
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| OneMonroe | NC | Flat Washer | Nylon (Polyamide) | Plain | .437 x .629 x .031 | seastrom sea 5610-82-31 nyl washer .437x.629x.031 | 250 |
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| OneMonroe | NC | Flat Washer | Nylon (Polyamide) | Plain | .503 x 1.00 x .020 | seastrom sea 5610-84-20 nyl wsh .503x1.00x.020 | 450 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | .500 x 1.003 x .062 | seastrom 5612-51-62 1/2 f/w whttef .500x1.003x.062 | 1600 |
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| OneMonroe | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | seastrom sea 5710-144-30 #5f/w ss.135x.312x.030 | 200 |
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| OneMonroe | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .636 x 1.062 x .060 | seastrom sea 5710-344-60 f/w ss.636x1.062x.060 | 575 |
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| OneMonroe | NC | Flat Washer | Brass | Plain | .324 x .520 x .032 | 5714-184-32 brass washer .324 x .520 x .032 | 150 |
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| OneMonroe | NC | Flat Washer | Brass | Plain | .255 x .497 x .040 | seastrom flat brass washer .255 x .497 x .040 | 200 |
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| OneMonroe | NC | Flat Washer | Steel | Plain | seastrom 5731-24 oval id wsh stl | 904 |
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| OneMonroe | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .066 x .188 x .025 | #0 f/w 18-8 ss .066 x .188 x .025 | 2196 |
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| OneMonroe | NC | Flat Washer | Nylon (Polyamide) | Plain | .090 x .250 x .062 | #2 f/w nyl nat .090 x .250 x .062 fw2-062 | 4625 |
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| OneMonroe | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .089/.094 x .339/.344 x .028/.036 | #2 f/w 18-8 ss .089/.094 x .339/.344 x .028/.036 | 100 |
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