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 / Furnace Black | fail | tp-rk7532-b018-1n washer for tp-rk7532 riveter (industrial only) | 6 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .812 x 1.87 x .109 | 3/4 18-8 stainless steel flat washer .812x1.87x.109 | 200 |
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| Endries | WI | Flat Washer | Brass | Plain / Furnace Black | .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 / Furnace Black | #16 | 16fw008062b nylon flat washer black | 8000 |
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| RePneu To | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 3/8 x 7/8 x 0.062 | 3/8 x7/8 x0.062 flat washers stain a2 (18-8) bbi standard | 560 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .125 x .312 x .032 | #4 type-a plain washer asme b18.21.1 | (small/large no series defined) 18.8 stainless steel (.125 id x .312 od x .032 thk) | (small/large no series defined) 18.8 stainless steel (.125 id x .312 od x .032 thk) | (small/large no series defined) 18.8 stainless steel (.125 id x .312 od x .032 thk) | 10000 |
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| Brikksen | Flat Washer | Aluminum | Plain / Furnace Black | 3/8 | 3/8 commercial flat washer .080 thick | aluminum | aluminum | aluminum | 45500 |
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| Brikksen | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | #10 | #10 commercial flat washer with | dimensions per an960c light series an960c10l 316 stainless steel | dimensions per an960c light series an960c10l 316 stainless steel | dimensions per an960c light series an960c10l 316 stainless steel | 9774 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 | #10 commercial flat washer with | dimensions per an960c light series an960c10l 18.8 stainless steel | dimensions per an960c light series an960c10l 18.8 stainless steel | dimensions per an960c light series an960c10l 18.8 stainless steel | 5000 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/4 | 1/4 commercial flat washer with | dimensions per an960c light series an960c416l 18.8 stainless steel | dimensions per an960c light series an960c416l 18.8 stainless steel | dimensions per an960c light series an960c416l 18.8 stainless steel | 95000 |
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| Brikksen | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 1/4 | 1/4 commercial flat washer with | dimensions per an960c standard series an960c416 316 stainless steel | dimensions per an960c standard series an960c416 316 stainless steel | dimensions per an960c standard series an960c416 316 stainless steel | 38291 |
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| Brikksen | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | #6 | #6 commercial flat washer with | dimensions per an960c standard series an960c6 316 stainless steel | dimensions per an960c standard series an960c6 316 stainless steel | dimensions per an960c standard series an960c6 316 stainless steel | 125000 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1 | 1 commercial flat washer with | dimensions per an960c standard series an960c1616 18.8 stainless steel | dimensions per an960c standard series an960c1616 18.8 stainless steel | dimensions per an960c standard series an960c1616 18.8 stainless steel | 1700 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 | #10 commercial flat washer with | dimensions per an960c standard series an960c10 18.8 stainless steel | dimensions per an960c standard series an960c10 18.8 stainless steel | dimensions per an960c standard series an960c10 18.8 stainless steel | 37000 |
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| Brikksen | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain / Furnace Black | 1/4 | 1/4 commercial flat washer with | dimensions per an960c standard series an960c416 18.8 stainless steel | dimensions per an960c standard series an960c416 18.8 stainless steel | dimensions per an960c standard series an960c416 18.8 stainless steel | 42736 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/16 | 5/16 commercial flat washer with | dimensions per an960c standard series an960c516 18.8 stainless steel | dimensions per an960c standard series an960c516 18.8 stainless steel | dimensions per an960c standard series an960c516 18.8 stainless steel | 48000 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 3/8 | 3/8 commercial flat washer with | dimensions per an960c standard series an960c616 18.8 stainless steel | dimensions per an960c standard series an960c616 18.8 stainless steel | dimensions per an960c standard series an960c616 18.8 stainless steel | 91856 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #4 | #4 commercial flat washer with | dimensions per an960c standard series an960c4 18.8 stainless steel | dimensions per an960c standard series an960c4 18.8 stainless steel | dimensions per an960c standard series an960c4 18.8 stainless steel | 82500 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/2 | 1/2 commercial flat washer with | dimensions per an960c standard series an960c816 18.8 stainless steel | dimensions per an960c standard series an960c816 18.8 stainless steel | dimensions per an960c standard series an960c816 18.8 stainless steel | 10000 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 9/16 | 9/16 commercial flat washer with | dimensions per an960c standard series an960c916 18.8 stainless steel | dimensions per an960c standard series an960c916 18.8 stainless steel | dimensions per an960c standard series an960c916 18.8 stainless steel | 7500 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/8 | 5/8 commercial flat washer with | dimensions per an960c standard series an960c1016 18.8 stainless steel | dimensions per an960c standard series an960c1016 18.8 stainless steel | dimensions per an960c standard series an960c1016 18.8 stainless steel | 5750 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #6 | #6 commercial flat washer with | dimensions per an960c standard series an960c6 18.8 stainless steel | dimensions per an960c standard series an960c6 18.8 stainless steel | dimensions per an960c standard series an960c6 18.8 stainless steel | 60000 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 3/4 | 3/4 commercial flat washer with | dimensions per an960c standard series an960c1216 18.8 stainless steel | dimensions per an960c standard series an960c1216 18.8 stainless steel | dimensions per an960c standard series an960c1216 18.8 stainless steel | 200 |
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| Brikksen | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain / Furnace Black | 7/8 | 7/8 commercial flat washer with | dimensions per an960c standard series an960c1416 18.8 stainless steel | dimensions per an960c standard series an960c1416 18.8 stainless steel | dimensions per an960c standard series an960c1416 18.8 stainless steel | 145 |
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| Brikksen | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #8 | #8 commercial flat washer with | dimensions per an960c standard series an960c8 18.8 stainless steel | dimensions per an960c standard series an960c8 18.8 stainless steel | dimensions per an960c standard series an960c8 18.8 stainless steel | 1600 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M36 | m36 din 125-stl zn flat washers | 1,102 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M14 | m14 din 125-200 hv zn flat washers | 29,350 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Yellow | M14 | m14 din 125-200 hv yzn flat washers | 11,860 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M18 | m18 din 125-a2 s.s flat washers | 940 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M10 | m10 din 125-200 hv zn flat washers | 87,321 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Yellow | M18 | m18 din 125-200 hv ye/zn flat washers | 21,778 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Yellow | M24 | m24 din 125-200 hv yzn flat washers | 990 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M2 | m 2 din 125-a2 s.s flat washers | 30,350 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M2.5 | m 2.5 din 125-a2 s.s flat washers | 3,000 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M3 | m 3 din 125-a2 s.s flat washers | 85,780 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M4 | m 4 din 125-a2 s.s flat washers | 27,077 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M22 | m22 din 125-a2 s.s flat washers | 5,007 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M24 | m24 din 125-a2 s.s flat washers | 1,212 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M27 | m27 din 125-a2 s.s flat washers | 1,927 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M36 | m36 din 125-a2 s.s flat washers | 550 |
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| MetricThrd | CA | Flat Washer | Brass | Plain / Furnace Black | M2 | m 2 din 125-brass flat washers | stock |
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| MetricThrd | CA | Flat Washer | Brass | Plain / Furnace Black | M3 | m 3 din 125-brass flat washers | 20,446 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M16 | m16 din 125-a2 s.s flat washers | 4,732 |
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| MetricThrd | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M20 | m20 din 125-a2 s.s flat washers | 1,975 |
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| MetricThrd | CA | Flat Washer | Brass | Plain / Furnace Black | M22 | m22 din 125-brass flat washers | 578 |
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| SunPack | FL | Flat Washer | 316, 317, A4 Stainless | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 1/2 | 1/2 316 ss flat washer xylan 1070 yellow | 20 |
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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 | 316, 317, A4 Stainless | Plain / Furnace Black | 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 | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 15/16 x 2 | 15/16 x 2 flat washer .060 thk 18-8/a2 | 540 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .785 | .785/.815x1.99/2.01x.059/.065 nylon flat washer natural | 5730 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .406 x .812 x .065 | .406x.812x.065 18-8 stainless steel flat washer | 380 |
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| Endries | WI | Flat Washer | Aluminum | Plain / Furnace Black | 1/8 x 3/8 x .060 | 1/8 x 3/8 od x .060 thk rivet backup washer alum | 13300 |
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| Endries | WI | Flat Washer | Grade 8 | Zinc/Clear | .280 x 3/4 | .280 id x 3/4 od fl wash .080 thk gr 8 znc | 11111 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | .531 x 1.56 x .134 | .531x1.56x.134 steel washer zinc | 365 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .812 x 1.57 x .074 | .812x1.57x.074 flat washer plain | 15 |
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| Endries | WI | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain / Furnace Black | 3/8 x 1 x 1/8 | 3/8x1x1/8 cotten reinforced rubber flat washer black | 200 |
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| Endries | WI | Flat Washer | Brass | Plain / Furnace Black | 1/4 | 1/4 sm pat flat washer brass | 492 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | .250 x .56 x .050 | #12 18-8 stainless steel standard flat washer black oxide .250x.56x.050 | 5000 |
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| Endries | WI | Flat Washer | Steel | Zinc/Yellow | .510 | .510/.525x.870/.880x .054/.066 flat washer .0005 trivalent yellow zinc | 330 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 7/16 x 59/64 x .065 | ms15795-816 7/16 18-8 s/s steel flat .468x.921x.051/.080 304ss | 12570 |
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| Endries | WI | Flat Washer | Brass | Plain / Furnace Black | .255 | .255/.265x.396/.406x .0285/.0355 brass flat | 215 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .156 x .312 x .035 | f/w .156x.312x.035 18-8ss | 8165 |
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| ASFCORP | MI | Flat Washer | Steel | Zinc/Clear | M5 x 9.5 | m5 x 9.5 sm od flt wshr lo carb stl din 433 tri zn fe/zn 5an pkg | 80 |
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| ASFCORP | MI | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 1 1/8 | 1 1/8 flt wshr 316 ss pkg | 50 |
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| ASFCORP | MI | Flat Washer | Steel | Zinc/Clear | M24 | m24 flt wshr stl 140hv din 125 form a tri zn fe/zn 5an pkg | 4 |
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| ASFCORP | MI | Flat Washer | Steel | Zinc/Clear | M16 | m16 flt wshr stl 140hv din 125 form a tri zn fe/zn 5an+blu dye pkg | 100 |
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| ASFCORP | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/16 ms15795-813 flt wshr ss pkg | 447256 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .115 x .307 x .006 | .174 x .375 x .032 type-316 s.s. f/w an960-c8 an960-c8 304ss an960-c8 | 920 |
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| Cal Fastenrs | CA | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | .281 x .625 x .045 | .281x.625x.045 type-316 stainless f/w comercial comercial fw f/w | 200 |
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| MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #0 | flt wshr (.067x.104x.016) 18-8 ss | 3774 |
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| MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #0 | flt wshr (.061x.156x.020) 18-8 ss | 7570 |
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| MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #1 | flt wshr (.084x.156x.025) 18-8 ss | 2412 |
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| MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #1 | flt wshr (.089x.187x.031) 18-8 ss | 610 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #6 | #6 (.156 x .438 x .043) flat washer n400p37 comml 18-8 stainl | 18,424.0 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | M10 | flt wshr (10.5x22x2.5) | 1500 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #0 | flt wshr (.050x.156x.030) | 331 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #0 | flt wshr (.068x.125x.025) | 1000 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #0 | flt wshr (.068x.125x.016) | 1000 |
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| MAINSOURC | NH | Flat Washer | Fiber | Plain / Furnace Black | #10 | flt wshr (.198x.375x.062) blk | 50 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #1 | flt wshr (.089x.250x.050) | 3000 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #2 | flt wshr (.093x.250x.020) | 200 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #2 | flt wshr (.090x.250x.062) | 397 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | #2 | flt wshr (.093x.316x.031) nylon | 600 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | 3/8 | flt wshr (.380x.625x.032) | 4240 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #4 | flt wshr (.120x.220x.031) | 150 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #4 | flt wshr (.125x.235x.040) | 3738 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #4 | flt wshr (.125x.250x.010) | 150 |
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| FasSpcMfg | FL | Flat Washer | Plain / Furnace Black | 5/64 | single 5/64 through hole in head across flats deburr both ends of hole .020 r | 1 |
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| FasSpcMfg | FL | Flat Washer | Plain / Furnace Black | .016 | washer face thickness .016 approx | 7 |
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| FasSpcMfg | FL | Flat Washer | Plain / Furnace Black | .016 | washer face thickness .016 approx | 1 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Black | M12 | m12 din 125-stl bl/zn flat washers | 2,000 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Black | M8 | m8 din 125-stl blk/zn flat washers | stock |
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| MetricThrd | CA | Flat Washer | Steel | Chrome Plated | M6 | m 6 din 125-st chrome flat washer | stock |
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| MMF | MI | Flat Washer | Steel | Plain / Furnace Black | 4 | countersunk washer ms21299c4 usa ms21299c4 b18.22.1 | 1047 |
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| MMF | MI | Flat Washer | Aluminum | Anodized | 1.062 x 2.500 x .165 | flat washer ms15795-727 usa ms15795-727 b18.22.1 | 40 |
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| MMF | MI | Flat Washer | Brass | Plain / Furnace Black | 0.219 x .469 x .049 | flat washer ms15795-947 usa ms15795-947 b18.22.1 | 53 |
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| MMF | MI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .266 x .688 x .050 | flat washer ms15795-853 usa ms15795-853 b18.22.1 | 497 |
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