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 | Zinc/Clear | 1.516 x 2.313 x .090 | 1.516x2.313x.090 flat washer steel zinc | 500 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 3/8 | 3/8 18-8 stainless steel standard flat washer .390x1.0x.062 | 100 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | 7/16 | 7/16 standard flat washer trivalent clear zinc (.500x1.243x.064) | 204 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .375 x .875 x .062 | .375x.875x.062 steel flat washer plain | 18000 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | 1-1/8 standard flat zinc (1.243x2.743x.136) | 85 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | .200 | .200/.205x.375x.032 flat zinc | 2711 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | .390 x .687 x .060 | .390x.687x.060 flat zinc | 3466 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | #343 1x1/2 reducng washer | 100 |
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| Endries | WI | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | .125/.135x.370/.380x .018/.022 316 stainless steel flat washer | 180 |
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| Endries | WI | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 1.25/1.261x1.748/1.752x .0415/.0485 316 stainless steel flat washer | 3500 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 4 f/w .120 id x 0.320 od x .040 th stainless 18-8 | 4150 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 8 f/w .188 +.008-.005 x .375 + .008-.005 x .040 + .005-.004 type-b narrow 18-8 stainless | 1197 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | z4-13 5/16 18-8 stainless steel flat washer .328x.562x.064 | 139 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 4 f/w .125 x .312 x .032 18-8 ms15795-804 | 500 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .406 id x 1 od fl wash .080 thk nyln blk | 24780 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .281 id x 5/8 od ms flat washer .065 thk 18-8 ss | 1139 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .203 id x .438 od x .040 thick flat washer | 8742 |
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| Endries | WI | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain / Furnace Black | .35/.36x.99/1.01x.105/.145 rubber washer | 900 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .627/633x1.13x.0310 stainless steel flat washer | 6000 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .687x.856x.010 flat washer plain | 4000 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .437x.710x.015 flat washer plain | 2000 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .270x.500x.060 flat washer plain | 12900 |
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| Endries | WI | Flat Washer | Steel | Zinc/Yellow | m10 flat washer yellow zinc | 765 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | m10 single chamfer washer zinc | 2200 |
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| ASFCORP | MI | Flat Washer | Steel | Phosphate | M6.8/7.2 x 17.8/19.8 x 5.0/5 | m6.8/7.2 x 17.8/19.8 x 5.0/5.4 flat washer 1010 steel gm7114m asf-04-1046 original | 4500 |
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| ASFCORP | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1 1/4 | 1 1/4 flt wshr ss pkg | 41 |
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| ASFCORP | MI | Flat Washer | Steel | Plain / Furnace Black | M7.0/7.4 x 21/23 x 1.1/2.1 | m7.0/7.4 x 21/23 x 1.1/2.1 flat washer 3500 per roll polyethylene foam+adhesive plain 90 184 910 cso 12/12/14 | 310000 |
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| UNEEDA | NJ | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .375 x .625 x .032 | nylon washer .375x.625x.032 | 8000 |
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| UNEEDA | NJ | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .112 x .206 x .053 | nylon washer .112x.206x.053 | 5000 |
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| UNEEDA | NJ | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .406 x 1.00 x .062 | nylon washer .406x1.00x.062 | 1000 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Clear | M22 | flat din 125 | 50 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M10 | flat din 126 | 40,372 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M6-6.15 | idx15 odx1.5 thick flat | 17,536 |
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| FastWare | Sask | Flat Washer | Steel | Plain / Furnace Black | 24.5 | mm idx33.0mm odx3.05mm thick flat | 8,185 |
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| FastWare | Sask | Flat Washer | Grade 5 | Plain / Furnace Black | 30.5 | mm idx70mm odx6.485mm thick flat h.r. plate astm a656 0 | 4,440 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | 10.5 | mm idx20mm odx2.5mm thick flat carbon | 5,201 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M3 x 26 | 26 idx38 odx0.91 thick flat astm a1008 rev e | 5,096 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | 33.27 | mm idx57.15mm odx3mm thick flat astm a1011 rev b | 4,857 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M2 x 11 | 11 idx28 odx4 thick flat astm a1011 rev d | 3,383 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | 16.7 | mm idx63.5mm odx9.5mm thick flat astm a1011 cs type-b rev b | 2,310 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | 14.4 | mm idx32mm odx4mm thick flat astm a1011 cs type-b | 858 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Clear | M3 x 6 | odx0.8th flat din 1440 | 1,000 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Clear | M20 | flat din 125 | 1,276 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | 44.7 | mm idx54mm odx0.06 thick flat | 1,030 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M6-6.40 | idx17 odx3 thick flat din 7349 | 1,162 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Clear | 24.25 | mm idx44.0mm odx6.0mm thick flat c1045 hrc 20.2-24.6 rev a | 1,000 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M12 | flat din 126 | 700 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M20 x 65 | 20 idx65 odx6 thick flat carbon | 617 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M13 x 70 | 13 idx70 odx5 thick flat astm a108 rev a | 460 |
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| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M18 | flat din 126 | 662 |
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| BHAM | AL | Flat Washer | Plain / Furnace Black | 2 x 2 x 1/2 | 1/2 x 2 x 2 plat washer .125 thk | 203 |
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| BHAM | AL | Flat Washer | Steel | Zinc/Yellow | 1/4 x 1.00 | 1/4 x 1.00 flatwasher yel zn dom | 6488 |
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| BHAM | AL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .812 x 1.469 x .125 | .812 x 1.469 x .125 nylon f/w natural ny | 191 |
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| BHAM | AL | Flat Washer | Steel | Zinc/Clear | .9381 x 1 1/2 | 7/8 f/w type-b nar zinc .9381 id 1-1/2 | 233 |
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| BHAM | AL | Flat Washer | Steel | Zinc/Clear | .344 x 1.00 | .344 x 1.00 flatwasher zn dom | 9884 |
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| BHAM | AL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .265 x .64 | .265 x .64 nylon flat washer dom | 82750 |
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| BHAM | AL | Flat Washer | Plastic | Plain / Furnace Black | 3/8 | 3/8 mil-spec plastic flatwasher | 200 |
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| BHAM | AL | Flat Washer | Steel | Zinc/Clear | 3/8 x 2 | 3/8 x 2 flat washer-zinc domestic | 6650 |
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| BHAM | AL | Flat Washer | Galvanized | M14 | m14 flatwasher mech galv dom din 125 | 2283 |
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| BHAM | AL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .406 x .875 x .06/.06 | 3/8 f/w 18-8 ss .406 x .875 x .06/.06 tk | 80 |
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| BHAM | AL | Flat Washer | Grade A36 | Galvanized | 2 | 2 hot dip galv flat washer a36 | 4 |
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| BHAM | AL | Flat Washer | Steel | Plain / Furnace Black | 1-9/16 x 3-1/4 x 3/8 | washer 1-9/16idx3-1/4odx3/8tk pln steel | 25 |
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| BHAM | AL | Flat Washer | Steel | Plain / Furnace Black | 2 1/2 x 3 3/8 x 1/4 | washer 2-1/2 x 3-3/8 x 1/4 washer stl. | 15 |
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| BHAM | AL | Flat Washer | Plain / Furnace Black | washer flat metal round general purp | 103 |
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| BHAM | AL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 x 7/16 x .049 | ms15795-808 washer flat metal round general purp | 191 |
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| BHAM | AL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/4 x .734 x .065 | commercial ms15795-811 1/4 s/stl | 1349 |
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| BHAM | AL | Flat Washer | Steel | Zinc/Clear | .9381 x 1 1/2 | 7/8 f/w type-b nar zinc .9381 id 1-1/2 | 233 |
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| BHAM | AL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | M2 | m2 nylon fat washer 1.6mm thick | 2600 |
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| BHAM | AL | Flat Washer | Teflon (PTFE) | Plain / Furnace Black | 1 x 1 | 1 x 1 1/2 od natural ptfe punched washer | 2351 |
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| BHAM | AL | Flat Washer | Black Oxide | M8 | m8 sae flat washer blk ox din 125a | 1964 |
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| Future Fastener | TX | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | M12 | M12 flat 316/a4 stainless steel | 71 |
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| Future Fastener | TX | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | M20 | M20 flat 316 stainless steel | 196 |
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| Komar | OH | Flat Washer | Steel | Zinc/Clear | .320/.325 x 1.090 x .138 flat washer .0003 zinc trivalent |
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| BHAM | AL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | commercial an960-c516 5/16 s/stl washer | 4000 |
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| BHAM | AL | Flat Washer | Plain / Furnace Black | M3 | m3 nlyon f/w din 125a | 24 |
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| Future Fastener | TX | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 5/8 | 5/8 flat xylan | 8 |
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| BHAM | AL | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 3/4 x 1 7/8 | 3/4x1 7/8 flat 316ss b18.22.1 | 12 |
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| BHAM | AL | Flat Washer | Brass | Plain / Furnace Black | 1/2 | 10 large pattern 1/2 od brass f/w | 4490 |
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| Future Fastener | TX | Flat Washer | Steel | Galvanized | M8 | M8 flat hot dip galvanized | 634 |
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| Mansco | MI | Flat Washer | Brass | Nickel Plated | M6.4 x 14 | x1 f/w | 20 |
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| Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .115-.120 x .250 .281 | .115-.120 id .250-.281 od .047 thk f/w 100/box | 87 |
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| Mansco | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .375 x .875 | .375 idx.875 odx.125 thk f/w 18-8 s/s z9097ss 100/box | 150 |
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| Mansco | MI | Flat Washer | Steel | Black Oxide | 13/32 x 5/8 | 13/32idx5/8odx3/16thk spacer | 1450 |
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| Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | 3/8 x 5/8 x 1/16 | 3/8 idx5/8 odx1/16 thk natural | 2000 |
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| Mansco | MI | Flat Washer | Steel | Zinc/Clear | .342 x .625 x .1196 | .342 idx.625 odx.1196 thk f/w triv znc | 2500 |
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| Mansco | MI | Flat Washer | Steel | Plain / Furnace Black | .575 x .785 x .015 | .575 idx.785 odx.015 thk f/w natural acetal | 3200 |
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| Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #10 | retaining f/w natural | 4900 |
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| Mansco | MI | Flat Washer | Steel | Black Oxide | .37 | 5/.380 idx.740/.760 odx.1196 thk f/w | 9000 |
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| Mansco | MI | Flat Washer | Steel | Zinc/Clear | 3/16 | rivet back-up triv znc (.197 idx.500 odx.062 thk) | 14240 |
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| Mansco | MI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .250 x 1.000 | .250 idx1.000 odx.125 thk f/w natural | 24000 |
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| Mansco | MI | Flat Washer | Steel | Zinc/Clear | .25 | 6/.276 idx.625 odx.040/.053 thk f/w triv znc 25/bag | 2 |
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| Mansco | MI | Flat Washer | Steel | Zinc/Clear | .380 x .700 x .100 | .380 idx.700 odx.100 thk f/w triv znc | 600 |
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| Mansco | MI | Flat Washer | Steel | Zinc/Clear | .25 | 5/.265 idx1.495/1.505 odx.086/.100 thk f/w triv znc countersunk | 6272 |
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| Komar | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 3/8 x .392 | 3/8s flat (.392x.875x.062) 18-8 ss | 1600 |
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| Komar | IL | Flat Washer | Steel | Zinc/Clear | #4 | #4 flt rivetburr whr.250x5/8x.046 zinc | 4000 |
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| Komar | IL | Flat Washer | Brass | Plain / Furnace Black | #4 x .118 x 9/32 | #4s flat .118x9/32x.025 brass | 5000 |
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| Komar | IL | Flat Washer | Brass | Zinc/Yellow | #4 x .118 x 9/32 | #4s flat .118x9/32x.025 brass zinc yellow | 2700 |
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| Komar | IL | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 5/8 x 11/16 | 5/8 flat 11/16x1 1/2x5/64 316 ss | 1 |
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| Komar | IL | Flat Washer | Brass | Plain / Furnace Black | #6 x 32 x 3/8 | 6-32x3/8 sl knurl thumb sc face brass nicke | 1000 |
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| Komar | IL | Flat Washer | Brass | Nickel Plated | #6 x .147 x 3/8 | #6l flat .147x3/8x.032 brass nickel | 13500 |
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| Komar | IL | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 7/8 x 15/16 x 2 | 7/8 flat (15/16x2 x .109) 316 ss | 7 |
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| Komar | IL | Flat Washer | Brass | Tin Plated | #6 x .147 x 5/16 | #6s flat .147x5/16x.028 brass tin pltd | 14000 |
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| Komar | OH | Flat Washer | Steel | Plain / Furnace Black | .322/.314x.468x.020 washer crs full hard light oil | 35315 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 x 3/8 x 0.047 | #10x3/8x0.047 18-8 s.s flat | 2,600 |
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| SunPack | FL | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 1 1/4 | 316 ss flat domestic | 40 |
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| SunPack | FL | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 1/2 | 316 ss flat domestic | 145 |
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| Spencer | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .787 x 1.102 x .059 | 3975 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | 8.4 x 16 x 1.6 | 8.4x16x1.6 fw rc hv 300-370 b18.22.1 | 13260 |
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| General F | MI | Flat Washer | Steel | Zinc/Clear | hf 3/8 sty 8 con wshr mech trvlnt zn b18.22.1 | 522112 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | .0938 x .531 x .0625 | .531x.0625x.0938 f/w b18.22.1 | 27451 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | hf .281x1.25x.065 fw gmw3200 b18.22.1 | 47257 |
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| General F | MI | Flat Washer | Steel | Zinc/Clear | hf 1-1/2x3 spcl wshr mech trivlnt b18.22.1 | 6566 |
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| General F | MI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .503 x .693 x .031 | .503x.693x.031 nyl wshr b18.22.1 | 6700 |
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| General F | MI | Flat Washer | Plastic | Plain / Furnace Black | 1.01 x 1.50 x .050 | 1.01x1.50x.050 -delrin b18.22.1 | 8425 |
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| General F | MI | Flat Washer | Steel | Zinc/Clear | .343 x 1.250 x .120 | .343x1.250x.120 fdr wshr external hvy zn b18.22.1 | 12463 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | M6-1.00 x 25 x 6 | M6-1.0x25 pan wshr hd 6-lobe scr | 71325 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | M24 | M24 f/w | 1575 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | M10 | M10 nar fw std d-030 11-1-94 | 2000 |
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| General F | MI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .318 x .680 x .187 | .318x.680x.187 fw nylon b18.22.1 | 2550 |
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| General F | MI | Flat Washer | Steel | Plain / Furnace Black | .75 x 1.375 x .125 | .75x1.375x.125 acetal f/w b18.22.1 | 695 |
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| General F | MI | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | .5000 x 1.0030 x .062 | .5000x1.0030x.062 teflon f/w b18.22.1 | 2144 |
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| General F | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Zinc/Clear | .265 x 1.01 x .07 | .265x1.01x.07 fw zn rev a2 b18.22.1 | 6134 |
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