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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 | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain / Furnace Black | .50 x 1.25 x .07/.09 | .50x1.25x.07/.09 17-7ph stainless steel flat washer | 745 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | M4.3 x 10 x 0.8 | 4.3x10x0.8mm flat washer without chamfer zinc | 815 |
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| Endries | WI | Flat Washer | Plain / Furnace Black | 5/8-11 x 12 | 5/8-11x12in overall length full thread stud plain slight deburr/chamfer | 200 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .901/.911 x 1.99/2.01 x .086/.10 | .901/.911x1.99/2.01x.086/.10 steel flat washer plain | 5540 |
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| MAINSOURC | NH | Flat Washer | Steel | Plain / Furnace Black | M2.5 | flt wshr stl z/clr din 433 | 100 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | #10 | flt wshr tbn dfars 316 ss | 424 |
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| MAINSOURC | NH | Flat Washer | Brass | Plain / Furnace Black | #10 x 10 | #10 flt wshr 10s (.200x.437x.036) | 886 |
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| RePneu To | MI | Flat Washer | Steel | Zinc/Clear | M20 | m20 thick flat washer zinc cr+3 din 7349 | 43 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | .194 x .690 | .194 id x .690 od fl wash .062 thk stl | 920 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | M6 | 16m06012150 m6 nylon flat washer (6.4x12x1.5) | 3000 |
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| Endries | WI | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .094 x .150 x .035 | 17w01550 (or equivalent) .094x.150x .035 nylon flat washer natural | 7500 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .125 x .312 x .032 | f/w .125 x .312 x .032 18-8ss | 4099 |
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| Endries | WI | Flat Washer | Teflon (PTFE) | Plain / Furnace Black | .165 | .165/.175x.370/.380x.031 ptfe washer | 160 |
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| VIKING BO | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #6 | 149 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .125 x .340 x .030 | flat 18-8 304 | 600 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .257 x .500 x .062 | .257 idx.500 odx.062 thick f/w | 1,100 |
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| Cal Fastenrs | CA | Flat Washer | Plastic | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | .240 x .375 x .005 | flat teflon | 1,000 |
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| Cal Fastenrs | CA | Flat Washer | Plastic | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | .435 x .630 x .031 | .435 idx.630 odx.031 thick teflon flat | 90 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Zinc/Black | .174 x .375 x .032 | .174 idx.375 odx.032 thk f/w black | 5,000 |
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| Cal Fastenrs | CA | Flat Washer | Brass | Plain / Furnace Black | 5/16 | 5/16 small pattern f/w brass 20-s | 130 |
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| Cal Fastenrs | CA | Flat Washer | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain / Furnace Black | .193-.197 x .500 .010 x .03 | .193-.197 idx.500 +/-.010 odx.032 +/-.005 thick aluminum flat alum alloy 7075-t6 per astm b209 211 or 221 | 6,150 |
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| Cal Fastenrs | CA | Flat Washer | Steel | Zinc/Clear | M3.2 x 9 x 3 | M3 m3.2 idx9 odx0.8 thk flat zinc din9021b bn-729 m3 din9021b bn-729 m3 | 2,400 |
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| Kanebridge | IL | Flat Washer | Steel | Cadmium/Yellow | .453 x .75 x .063 | an960-716 military mach sc washer cadmium yellow | 30000 |
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| Kanebridge | IL | Flat Washer | Steel | Zinc/Clear | .156 x .437 x .059ba | .156x.437x.059 back up rivet washer zinc | 100000 |
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| Kanebridge | IL | Flat Washer | Steel | Zinc/Clear | .187 x .500 x .059ba | .187x.500x.059 back up rivet washer zinc | 100000 |
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| Kanebridge | IL | Flat Washer | Steel | Zinc/Clear | .125 x .375 x .059ba | .125x.375x.059 back up rivet washer zinc | 100000 |
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| Kanebridge | IL | Flat Washer | Steel | Zinc/Clear | .250 x .500 x .059ba | .250x.500x.059 back up rivet washer zinc | 100000 |
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| Kanebridge | IL | Flat Washer | Aluminum | Plain / Furnace Black | .250 x .500 x .059ba | .250x.500x.059 back up rivet washer alu aluminum | 100000 |
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| Kanebridge | IL | Flat Washer | Aluminum | Plain / Furnace Black | .125 x .375 x .059ba | .125x.375x.059 back up rivet washer alu aluminum | 100000 |
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| Kanebridge | IL | Flat Washer | Aluminum | Plain / Furnace Black | .156 x .437 x .059ba | .156x.437x.059 back up rivet washer alu aluminum | 100000 |
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| Kanebridge | IL | Flat Washer | Aluminum | Plain / Furnace Black | .187 x .500 x .059ba | .187x.500x.059 back up rivet washer alu aluminum | 100000 |
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| MetricThrd | CA | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | M8 | m 8 din 433-a4 s.s flat washers (small o.d.) | 13,500 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M3.5 | m 3.5 din 125-stl zn flat washers | 3,100 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M8 | m 8 jis b1256-stl zn flat washers | 88,648 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M1.6 | m 1.6 din 125-stl zn flat washers | 600 |
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| MetricThrd | CA | Flat Washer | Steel | Zinc/Clear | M6 | m 6 jis b1256-stl zn flat washers | 80,599 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M2 | m2 flat washer din125 18-8 stainless 18-8 stainless | 33.0 |
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| MESAFAST | CA | Flat Washer | Steel | Zinc/Clear | M4 x 12 | m4 x 12mm flat washer steel zinc din 9021b steel zinc din 9021b | 8,000.0 |
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| MESAFAST | CA | Flat Washer | Steel | Zinc/Clear | M3 | m3 flat washer din125a steel zinc steel zinc | 1,900.0 |
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| MESAFAST | CA | Flat Washer | Steel | Plain / Furnace Black | M24 | m24 flat washer din125a steel plain steel plain | 198.0 |
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| MESAFAST | CA | Flat Washer | Steel | Zinc/Clear | M20 | m20 flat washer din125a steel zinc steel zinc | 41.0 |
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| MESAFAST | CA | Flat Washer | Steel | Zinc/Clear | M6 | m6 flat washer din125a steel zinc steel zinc | 9.0 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/8 | flat ms 15795-820 18-8 s/s 18-8 s/s | 265.0 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .750 x .990 x .030 | .990 odx.750 idx.030 flat 18-8 s/s 18-8 s/s | 468.0 |
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| MESAFAST | CA | Flat Washer | Steel | Zinc/Black | M5 | flat black din 125a | 1,800.0 |
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| MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .312 x .562 x .030 | .030 x .312 x .562 flatwasher nylon black nylon black | 100.0 |
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| MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .218 x .375 x .032 | flat nylon | 500.0 |
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| MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .515 x 1.500 x 7/16 | .515 idx1.500 odx7/16 thk flat natural natural | 1,000.0 |
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| MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .218 x .625 x .031 | .031x.218 (3/16 id)x.625 flat natural natural | 500.0 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M5 | m5 flat washer 18-8 stainless 18-8 stainless | 440.0 |
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| MESAFAST | CA | Flat Washer | Steel | Plain / Furnace Black | M12 | m12 flat washer steel plain steel plain | 50.0 |
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| MESAFAST | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 flat washer din125z steel zinc steel zinc | 742.0 |
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| Mansco | MI | Flat Washer | Steel | Plain / Furnace Black | .315 | .315/.325 idx.870/.880 odx.056/.064 thk f/w pln | 1682 |
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| Olander | CA | Flat Washer | Fiber | Plain / Furnace Black | f/w fiberglass .120-.281-.031 () () | 1948 |
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| Olander | CA | Flat Washer | Fiber | Plain / Furnace Black | f/w fibre .093-.158-.032 () () | 228 |
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| Olander | CA | Flat Washer | Steel | Plain / Furnace Black | .625 x 8 | 8 x .625 od x .125 thk f/w nyl () () | 5334 |
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| Olander | CA | Flat Washer | Steel | Black Oxide | .531 x .1.125 x .187 | .531 x .1.125 x .187 f/w stl blk () () | 48 |
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| Olander | CA | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | raf teflon f/w .500 .250 .125 () () | 174 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | f/w sst pass .144-.375-.030 () () | 1011 |
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| Olander | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | f/w nyl .265-.375-.031 () () | 113 |
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| Olander | CA | Flat Washer | Steel | Plain / Furnace Black | f/w stl .255-.442-.010 () () | 93 |
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| Olander | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | f/w nyl .281-.562-.062 () () | 610 |
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| Olander | CA | Flat Washer | Brass | Plain / Furnace Black | 2 x 3/16 | 2 x 3/16 f/w br pln () () | 5299 |
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| Olander | CA | Flat Washer | Steel | Plain / Furnace Black | f/w acetal .191-.312-.031 () () | 186 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | f/w sst .281-1.000-.060 () () | 36 |
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| Olander | CA | Flat Washer | Steel | Zinc/Yellow | f/w stl zn ylw .113-.281-.030 () () | 4917 |
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| MESAFAST | CA | Flat Washer | Steel | Black Oxide | M10 | m10 flat washer din125a steel black oxide steel black oxi de | 132.0 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M10 | m10 flat washer a2 stainless a2 stainless | 659.0 |
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| Global | CA | Flat Washer | Plastic | Plain / Furnace Black | 17w02504 microplastics flat ny | 176 |
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| MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .250 x .375 x .031 | flat nylon | 1,500.0 |
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| MESAFAST | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | 5/16x(3/4 od) flat natural natural | 450.0 |
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| Northern | MN | Flat Washer | Steel | Plain / Furnace Black | 3 |
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| Northern | MN | Flat Washer | Steel | Zinc/Yellow | 1.406 x 2 x .060 | flat | 2900 |
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| Northern | MN | Flat Washer | Steel | Zinc/Yellow | 3/4 x 2.5 x .16 | type-b wshr zc/yel | 455 |
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| Northern | MN | Flat Washer | Steel | Zinc/Clear | 1.125 x 3.5 x .375 | thk flat | 7 |
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| Northern | MN | Flat Washer | Steel | Plain / Furnace Black | .891 x 1.625 x .065 | crenlo | 2500 |
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| Northern | MN | Flat Washer | Brass | Plain / Furnace Black | .390 x 1 | .390idx1odx.125thk washr | 700 |
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| Northern | MN | Flat Washer | Steel | Zinc/Yellow | M5 | small od din 433 | 60 |
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| Northern | MN | Flat Washer | Steel | Plain / Furnace Black | M3 | flat din 125 | 97 |
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| Northern | MN | Flat Washer | Steel | Zinc/Yellow | M20 | small od din 433 | 50 |
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| Northern | MN | Flat Washer | Steel | Zinc/Clear | M20 | small od din 433 | 44 |
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| Northern | MN | Flat Washer | Steel | Zinc/Yellow | M6 | flat din 125 | 86 |
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| Northern | MN | Flat Washer | Steel | Plain / Furnace Black | M3.5 | flat din 125 | 152 |
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| Northern | MN | Flat Washer | Steel | Plain / Furnace Black | M7 | flat din 125 | 28 |
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| Northern | MN | Flat Washer | Steel | Zinc/Clear | 1/2 | an960 c6l flat stain | 45 |
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| Northern | MN | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M3 | flat 18-8 304 din 125 | 1200 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M2.5 | m a2 ss (/2.7x.5x.5) 100521-78 din 125 | 14,189 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M3 x 3.2 | M3 a2 18-8 304 3.2 id (3.38 max)x6 od (5.7 min)x.45-.55 thk din 433 | 356 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | od 18-8 s/s h40066-39 | 2,074 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 3/4 | 18-8 ss (.812x1.875x.109) 8500-216 | 34 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | M6.5 | flat x25.x3 18-8 ss (tol+/-.4) 7556958 | 769 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 | ss wide ( .219x.500x.050) 18-8 ss | 9,378 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/16 | flat 18-8 ss (.344x.688 x.065) 9997-522 | 200 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #8 | flat 18-8 ss (.172x.375x.032) 9997-92 | 4,105 |
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| IRF | NC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/16 | flat 18-8 s/s (.750x.345x .045/.055) | 300 |
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| ISSCO | MO | Flat Washer | Steel | Zinc/Clear | 7/16 | .438 id X .875 od X .063 narrow type-b | 3940 |
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| ISSCO | MO | Flat Washer | Steel | Zinc/Clear | 5/16 | .359 X 1.14 0D X .070 thk wide type-b | 1500 |
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| ISSCO | MO | Flat Washer | Steel | Zinc/Clear | 5/16 | .359 X 1.14 0D X .070 thk wide type-b | 1500 |
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| ISSCO | MO | Flat Washer | Steel | Zinc/Yellow | 7/8 | .906 x 1.50 od x .059 thk | 2000 |
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| Spencer | OH | Flat Washer | Brass | Plain / Furnace Black | .168 x .5 x .03 | .168id x .500od x .030tk brass flat washer | 5950 |
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| White Dis | IL | Flat Washer | Steel | Phosphate | 1.03 x 2.88 x .109 | 1.03 idx2.88 odx.109 thick flat steel phos & oil | 18,036 |
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| White Dis | IL | Flat Washer | Steel | Zinc/Clear | .670 | .670/.688 idx1.28/1.40 odx.260/.310 thick flat steel rc 26-45 zinc | 9,065 |
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| IRF | NC | Flat Washer | Steel | Zinc/Clear | .187 x .625 x .046 | s nor wsr | 6250 |
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| BAYFASTCO | FL | Flat Washer | Brass | Plain / Furnace Black | 10 | 10 s flat washer brass | 5459 |
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| BAYFASTCO | FL | Flat Washer | Steel | Plain / Furnace Black | 1/4 | 1/4 flat washer | 3354 |
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| MetricThrd | CA | Flat Washer | Steel | Nickel Plated | M6 x 18 | m6 x 18 steel nickel t-washers | stock |
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| SHELDON | OH | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #2 | f/w 66 natural .094id .188od .020thick micro#17w01815 seastrom 5610-9-20 | 25,000 |
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| ACCURATE | IL | Flat Washer | Brass | Nickel Plated | .200 x .500 x .04 | flat flat s | 32,000 |
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| ACCURATE | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1 3/8 x 1 7/8 x 1/16 | flat flat s 18-8ss | 1,500 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | flat flat s | 200 |
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| ACCURATE | IL | Flat Washer | Steel | Nickel Plated | 11/16 x 1 1/4 x 1/16 | flat flat s | 5,200 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | #7 | rivb urr flat flat s | 36,000 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | 15/32 x 11/16 x 1/64 | flat flat s | 1,000 |
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| ACCURATE | IL | Flat Washer | Brass | Plain / Furnace Black | 0.185 x 1 x 0.064 | flat flat s | 500 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | #9 | rivb urr flat flat s | 25,000 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | 21/32 x 1 x 0.055 | flat flat s | 6,000 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | 13/32 x 1 x 0.134 | flat flat s | 1,100 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | 2 x 3 x 1/8 | flat flat s | 500 |
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| ACCURATE | IL | Flat Washer | Brass | Nickel Plated | .200 x .437 x .036 | flat flat s | 29,000 |
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| ACCURATE | IL | Flat Washer | Steel | Zinc/Clear | 9/64 x 3/8 x 0.049 | flat flat s | 140,000 |
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| ACCURATE | IL | Flat Washer | Steel | Copper Plated | 21/32 x 1 1/2 x 1/8 | flat flat s plain | 310 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | 21/32 x 1 5/16 x 9/64 | flat flat s | 1,200 |
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| ACCURATE | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 0.14 x 0.44 x 0.045 | flat flat s 18-8ss | 5,000 |
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| ACCURATE | IL | Flat Washer | Steel | Zinc/Clear | 15/32 x 5/8 x 1/32 | flat flat s | 5,000 |
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| ACCURATE | IL | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain / Furnace Black | M8 | flat flat s 410 ss | 5,000 |
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| ACCURATE | IL | Flat Washer | Brass | Nickel Plated | 0.2 x 1/2 x 0.04 | flat flat s | 100,000 |
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| ACCURATE | IL | Flat Washer | Steel | Plain / Furnace Black | 1/2 x 1 x 0.063 | flat flat s | 10,000 |
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