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 | Brass | Plain | .340 x .875 x .062 | 5/16 (20l) brass flat washer (.340x.875x.062) | 200 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain | #16 | 16fw008062b nylon flat washer black | 8000 |
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| Endries | WI | Flat Washer | Cadmium/Yellow | #10 | an960-10l #10 flat washer cadmium & yellow | 200 |
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| Endries | WI | Flat Washer | 316, 317, A4 Stainless | Plain | .401/.411 x 1.245/1.255 x .057/.088 | .401/.411x1.245/1.255x .057/.088 316 stainless steel flat washer | 1900 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .277 x .453 x .177 | .177(#10) x .277 x .453 x .032 retaining washer nylon 16fwrt010032 volt wr-0453-0177-0032 | 16fwrt010032 volt wr-0453-0177-0032 | 16fwrt010032 volt wr-0453-0177-0032 | 3,400 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | .406 x .875 x .045 | .406 x .875 x .045 stainless f/w black oxide (3/8 commercial) | 3,291 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .500 x .750 x .062 2 49 | .500 x .750 x .062 flatwasher stainless steel ss2-49 equiv | 291 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .115 x .209 x .016 | nas620-4l (.115 x .209 x .016)f/w emer excess | emer excess | emer excess | 13,700 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .143 x .267 x .032 | nas-620-6 (.143 x .267 x .032)f/w nas f/w | nas f/w | nas f/w | 7,300 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .115 x .209 x .016 | nas-620-c4l (.115 x .209 x .016)s.s f/w nas f/w | nas f/w | nas f/w | 4,500 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .143 x .267 x .016 | nas620-6l (.143 x .267 x .016)f/w nas f/w | nas f/w | nas f/w | 39,800 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Plain | .156 x .312 x .035 | .156 id x .312 od x .035 thick steel f/w plain flat washer plain steel | flat washer plain steel | flat washer plain steel | 1,000 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Zinc/Clear | #2 | #2 flat washer stl zc .250 x .094 id .032 thk (type-b regular) | 9,845 |
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| Cal Fastenrs | CA | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain | .255 x .468 x .068 | nas-620-c416 (.255 x .468 x .068) s.s. f/w nas f/w | nas f/w | nas f/w | 853 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M10 | m10 flat washer zinc | 6405 |
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| QFC | TX | Flat Washer | Steel | Plain | M12 | m12 hi strength flat washer din69 | 148 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M22 | m22 flat washer trivalent zinc plate | 50 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M12 | m12 flat washer steel zinc | 60 |
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| QFC | TX | Flat Washer | Steel | Plain | M24 | m24 flat washer plain finish (din 125a) | 10 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .275 x .025 | .275 od x .125 id x .025 thk 300 ss f/w b18.22.1 | 807 |
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| QFC | TX | Flat Washer | 316, 317, A4 Stainless | Plain | M3 | m3 flat washer 316 | 1178 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M3 | m3 flat washer steel trivalent clear | 1130 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M4 | m4 flat washer steel zinc plating | 5000 |
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| QFC | TX | Flat Washer | 316, 317, A4 Stainless | Plain | M4 | m4 flat washert a4 | 134 |
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| QFC | TX | Flat Washer | Brass | Plain | M4 | m4 flat washer din 125 brass | 1000 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 | m6 flat washer din 125 a2 stainless | 1110 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M6 | m6 flat washer zinc din 125 | 229 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 | 6m flat washer din 125 ss304 | 100 |
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| QFC | TX | Flat Washer | 316, 317, A4 Stainless | Plain | M6 | m6 flat washer a4 | 110 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M8 | m8 flat washer a2 stainless steel | 1000 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | M8 | m8 din 125a 140hv flat washer zinc | 1000 |
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| QFC | TX | Flat Washer | Steel | Plain | 5/16 | 5/16 pln cut washer(90 per lb 4500/50lb) .375x.875x.083 b18.22.1 | 1 |
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| QFC | TX | Flat Washer | Steel | Plain | 7/8 | 7/8 plain cut washer each 6.5 .938x2.25x.165 b18.22.1 | 217 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1 1/16 x 2 1/2 x 3/8 | 1-1/16 x 2-1/2 x 3/8 thick flat washer 18-8 stainless steel domestic-phys & chem certs required b18.22.1 | 50 |
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| Field Fas | IL | Flat Washer | Steel | Plain | .501 x 1 3/8 flat washer .062thk stl pln | 2500 |
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| MESAFAST | CA | Flat Washer | Brass | Plain | 1/4 flat washer (430 pcs/lb) brass | brass | brass | 100.0 |
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| FMP | MA | Flat Washer | Fiber | Plain | 3/8 | (.395 x .687 x .063) flat fibre | 3900 |
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| FMP | MA | Flat Washer | Aluminum | Plain | 3/8 | USS flat | 2000 |
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| FMP | MA | Flat Washer | Plastic | Plain | 1/2 | 1/4 (.515 x 1.10 x .062) flat teflon | 775 |
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| FMP | MA | Flat Washer | Fiber | Plain | 1/2 | (.543 x 1.25 x .064) flat fibre | 2350 |
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| FMP | MA | Flat Washer | Fiber | Plain | 1/2 | (.503 x .875 x .170) flat fibre | 121 |
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| FMP | MA | Flat Washer | Aluminum | Plain | 3/4 | (.813 x 1.484 x .016) flat | 150 |
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| FMP | MA | Flat Washer | Fiber | Plain | 7/8 | (.875 x 1.125 x .032) flat fibre | 60 |
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| FMP | MA | Flat Washer | Plastic | Plain | #10 | (.210 x .286 x .050) flat teflon | 10000 |
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| FMP | MA | Flat Washer | Aluminum | Plain | #10 | (.202 x .314 x .032) flat | 900 |
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| FMP | MA | Flat Washer | Fiber | Plain | #10 | (.190 x .375 x .065) flat fibre | 550 |
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| FMP | MA | Flat Washer | Plastic | Plain | #10 | (.203 x .562 x .040) flat teflon | 5000 |
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| FMP | MA | Flat Washer | Fiber | Plain | #12 | (.225 x .400 x .043) flat fibre | 54900 |
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| FMP | MA | Flat Washer | Aluminum | Plain | #2 | (.100 x .300 x .040) flat | 3600 |
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| FMP | MA | Flat Washer | Fiber | Plain | #2 | (.090 x .218 x .030) flat fibre | 37000 |
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| FMP | MA | Flat Washer | Fiber | Plain | #2 | (.090 x .186 x .016) flat fibre | 17000 |
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| FMP | MA | Flat Washer | Aluminum | Plain | #2 | (.104 x .219 x .022) flat | 3000 |
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| FMP | MA | Flat Washer | Fiber | Plain | #3 | (.115 x .187 x .018) flat fibre | 3300 |
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| FMP | MA | Flat Washer | Fiber | Plain | #4 | (.140 x .218 x .015) flat fibre | 200 |
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| FMP | MA | Flat Washer | Fiber | Plain | #4 | (.128 x .245 x .045) flat fibre | 19200 |
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| FMP | MA | Flat Washer | Aluminum | Plain | #4 | (.129 x .312 x .062) flat | 4000 |
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| AETNA | IL | Flat Washer | Steel | Zinc/Yellow | 7/32 x 1/2 x .045 | steel flat washer zinc yellow zinc/yellow | 64,700 |
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| AETNA | IL | Flat Washer | Steel | Zinc/Yellow | M16 | 17.0 x 96.0 x 8.0 steel washer zinc yellow | 1,715 |
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| AETNA | IL | Flat Washer | Steel | Plain | .776/.799 x 2.00 x .188 | steel flat washer plain rust on parts need to be cleaned | 3055 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Zinc/Clear | M10 | m10 flatwasher (m10.5 x 18mm x 1.6mm)-zinc bn-726 | bn-726 | bn-726 | 2,000 |
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| Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain | .275 x 1.00 x .062 | .275 idx1.00 odx.062 thk f/w natural | 960 |
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| Mansco | MI | Flat Washer | Steel | Plain | 1-5/16 x 2 1/4 x 1/8 | 1-5/16 id x 2-1/4 od x 1/8 thick steel flat washer plain | 12275 |
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| MFS | KS | Flat Washer | Steel | Zinc/Clear | M4 | 200 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 3/16 x 1.020 | (.312/.500) dome hd tritite w/ | 58,975 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 3/16 x .770 | (.062/.250) dome hd tritite w/ | 2,140 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 1/4 x .960 | (.125/.375) dome hd tritite w/ | 118,010 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 1/4 x .960 | (.125/.375) dome hd tritite w/ | 23,950 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 3/16 x .770 | (.062/.250) dome hd tritite w/ | 9,600 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 1/4 x 1.020 | (.312/.500) low profile recessed tritite w/ | 3,400 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 3/16 x 1.020 | (.312/.500) dome hd tritite w/ | 72,480 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | s/s back up rohs 1/8 rohs compliant | 760,900 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | back up 18-8 304 3/16 rohs compliant | 2,021,100 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | back up 18-8 304 5/32 rohs compliant | 239,700 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | back up 18-8 304 1/4 rohs compliant | 148,815 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | alum back-up 3/16 rohs compliant | 66,750 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 1/4 alum back-up rohs compliant | 33,736 |
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| IRF | NJ | Flat Washer | Steel | Plain | back up 5/32 rohs compliant | 320,000 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | back up 1/8 rohs compliant | 1,000,000 |
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| IRF | NJ | Flat Washer | Steel | Zinc/Clear | 1/4 x 1.820 | l(1.875-2.125 grip) set plate rohs compliant | 1,958 |
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| IRF | NJ | Flat Washer | Steel | Plain | back up 1/8 rohs compliant | 407,350 |
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| IRF | NJ | Flat Washer | Steel | Zinc/Clear | back up / 5/32 rohs compliant | 501,300 |
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| IRF | NJ | Flat Washer | Steel | Plain | back up 3/16 rohs compliant | 223,400 |
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| IRF | NJ | Flat Washer | Steel | Zinc/Clear | backup for 1/4 blind rivet stl/ rohs compliant | 208,000 |
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| FTS | OH | Flat Washer | Steel | Plain | 7/16 | .438ID X 2.125OD X .12THK STL | 7880 |
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| FTS | OH | Flat Washer | Steel | Zinc/Clear | 3/4 FW .812ID x 1.50OD x .120/130 | 3/4 FW .812ID X 1.50OD X .120/130 STL ZN | 4500 |
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| Spencer | OH | Flat Washer | Steel | Zinc/Clear | .266 ID x .75 OD x .135 Thk | .266 ID x .75 OD x .135 Thk | 4070 |
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| Spencer | OH | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | #12 x .551 | Bonded Neoprene Washer | 13298 |
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| IRF | NJ | Flat Washer | Brass | Plain | .391 x 1.00 x .064 | 118 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 1.469 x .134 | 3/4 n 1.469x.134 18-8 ss ms15795-822 | 504 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .255 x .463 x .063 | nas620-c416 id .255 x od .468 x thk .063 18-8 ss nas620c416 304ss | 4,810 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .468 | odx.255 idx.031 thk 18-8 ss | 500 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | nas 620-c6 18-8 ss .15 idx.27 odx.02/.04 thick | 1,800 |
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| IRF | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/8 x 5/16 x 031 | flat s 18-8 s/s (size #4) | 6,510 |
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| IRF | NJ | Flat Washer | 316, 317, A4 Stainless | Plain | 1/2 | (general purpose flat ) .531x1.25x.062 316 stainless | 2,003 |
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| Associate | PA | Flat Washer | Steel | Plain | .531 x 1.062 x .095 | .531x1.062odx.095 thk | 1,848 |
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| Associate | PA | Flat Washer | Steel | Plain | .531 x 1.062 x .095 | .531x1.062odx.095 thk | 850 |
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| Associate | PA | Flat Washer | Steel | Plain | .531 x 1.062 x .095 | .531x1.062odx.095 thk | 850 |
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| Associate | PA | Flat Washer | Steel | Plain | .531 x 1.062 x .095 | .531x1.062odx.095 thk | 1,848 |
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| Associate | PA | Flat Washer | Steel | Plain | .380 x .750 x .062 | .750 odx.380 idx .062 thk | 318 |
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| Associate | PA | Flat Washer | Plastic | Plain | .630 x .846 x .050 | .846 odx.630 idx.050 thk delrin | 6,200 |
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| Associate | PA | Flat Washer | Steel | Plain | #10 .734 x .203 x .063 | #10 f/w type-b .734odx.203idx.063thk | 5,600 |
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| Associate | PA | Flat Washer | Steel | Plain | .380 x .750 x .062 | .750 od x .380 idx .062 thk AS35000X01 | 26 |
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| Associate | PA | Flat Washer | Steel | Zinc/Clear | M10 | flat | 5,250 |
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| Associate | PA | Flat Washer | Steel | Zinc/Clear | M10 | flat | 500 |
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| Associate | PA | Flat Washer | Steel | Zinc/Clear | M8 | flat | 8,700 |
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| Associate | PA | Flat Washer | Steel | Zinc/Clear | M8 | flat | 622 |
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| Associate | PA | Flat Washer | Steel | Plain | .878 x 1.882 x .059 | 1.882 odx.878idx.059 thk flat | 334 |
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| Associate | PA | Flat Washer | Steel | Plain | 1.505-1.495 x .755 .780 x .02 | 1.505-1.495odx.755-.780idx.025-.035 | 5,400 |
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| Associate | PA | Flat Washer | Steel | Plain | .757 x 2 x .20 | .757 idx 2 od .200/.218 thk | 210 |
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| Associate | PA | Flat Washer | Steel | Plain | .878 x 1.882 x .059 | 1.882 odx.878idx.059 thk flat | 2,400 |
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| IRF | NJ | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | rubber zt-6000vs | 54 |
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| IRF | NJ | Flat Washer | Steel | Plain | 3/16 x .787 | l(.050-.187 grip)supertrifix w/ rohs compliant | 20359 |
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| IRF | NJ | Flat Washer | Steel | Plain | 3/16 x .1.05 | l(.187-.437 grip)supertrifix w/ rohs compliant | 57805 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | 3/16 x .450 | (.188-.250 grip)alu/stl open lf/ rohs compliant | 1500 |
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| IRF | NJ | Flat Washer | Steel | Plain | rev 18 an960-616l an960-616l | 500 |
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| IRF | NJ | Flat Washer | Aluminum | Anodized | 3/16 | alum back-up black | 170 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | back up 7/16 od rohs compliant | 20530 |
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| IRF | NJ | Flat Washer | Steel | Plain | ms | 2535 |
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| IRF | NJ | Flat Washer | Steel | Plain | (tk) | 5 |
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| IRF | NJ | Flat Washer | Steel | Plain | (tn) | 1 |
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| IRF | NJ | Flat Washer | Steel | Plain | 60 |
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| IRF | NJ | Flat Washer | Steel | Plain | 34 |
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| IRF | NJ | Flat Washer | Steel | Plain | 60 |
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| IRF | NJ | Flat Washer | Nylon (Polyamide) | Plain | collar swny- | 1387 |
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| IRF | NJ | Flat Washer | Steel | Zinc/Black | backup for 1/4 blind rivet stl/ black rohs compliant | 1000 |
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| IRF | NJ | Flat Washer | Steel | Plain | back up 7/16 od rohs compliant | 35000 |
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| IRF | NJ | Flat Washer | Steel | Plain | #1035 | index | 10 |
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| IRF | NJ | Flat Washer | Steel | Plain | 53 |
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| IRF | NJ | Flat Washer | Steel | Plain | 9/16 x 1 1/16 x .033 | 9/16 idx1-1/16 odx.033 thk. | 200 |
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| IRF | NJ | Flat Washer | Aluminum | Plain | .156 x .375 x .038 | alum | 50000 |
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| JFI | CA | Flat Washer | Nylon (Polyamide) | Plain | 253 ID x 375 OD x 084 TH | 10000 |
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| JFI | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 13/64 x 7/16 x 1/16 | flat | 65,000 |
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| JFI | CA | Flat Washer | Fiber | Plain | 0.255 x 0.707 x 0.032 | flat | 2,500 |
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