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 | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/16 | ms15795-812 5/16 18-8 stainless steel flat washer .343x.687x.051/.080 | 7000 |
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| Endries | WI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .156 x .375 x .031 | #6 18-8 stainless steel standard flat washer .156x.375x.031 | 1000000 |
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| Endries | WI | Flat Washer | Steel | Plain / Furnace Black | 7/16 | 7/16 standard flat washer plain (.500x1.243x.064) | 200 |
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| Endries | WI | Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1-3/8 standard flat washer zinc (1.493x3.240x.153) | 150 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #6 x .158 | #6 f/w s/s18-8 .158/.165 id.500od.062thk | 3915 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/4 x .265 | 1/4 f/w s/s 18-8.265idx.688odx.048thk | 200 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/4 | 1/4 f/w type-b reg s/s 18-8.281id.734od | 433 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/4 f/w s/s 18-8 .250 id (+.003/-.001) | 4090 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 x .203 | #10 flats/s18-8.203id.750od.037thk | 3156 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/16 | 5/16 f/w typeb reg s/s18-8 .344id.870od | 85 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 1/4 x .312 | 1/4 fw 18-8 s/s .312id .734od .065thc | 100 |
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| NAPPCO | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 47-71-201-24 ss | 8 |
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| NAPPCO | TX | Flat Washer | Steel | Plain / Furnace Black | 47-71-101-24 | 73 |
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| NAPPCO | TX | Flat Washer | Steel | Plain / Furnace Black | 47-71-501-24 | 8 |
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| NAPPCO | TX | Flat Washer | Steel | Plain / Furnace Black | 47-71-601-24 | 100 |
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| NAPPCO | TX | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 1 1/4 | 1-1/4 fw s/s t316 1.312id 2.750od.100thk | 21 |
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| NAPPCO | TX | Flat Washer | Steel | Plain / Furnace Black | 31-3-11-11 | 771 |
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| NAPPCO | TX | Flat Washer | Grade 8 | Plain / Furnace Black | 5/8 | 5/8 grade 8 flat plain special | 2040 |
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| NAPPCO | TX | Flat Washer | Aluminum | Plain / Furnace Black | 5/16 | 5/16 flat aluminum | 263 |
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| NAPPCO | TX | Flat Washer | Aluminum | Plain / Furnace Black | 5/8 | 5/8 flat aluminum | 98 |
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| NAPPCO | TX | Flat Washer | Aluminum | Plain / Furnace Black | 1/2 | 1/2 flat aluminum | 328 |
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| NAPPCO | TX | Flat Washer | Brass | Plain / Furnace Black | #2 | #2 fw lgpattern brass.093id.218od.020thk | 2900 |
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| NAPPCO | TX | Flat Washer | Brass | Nickel Plated | #4 | #4 brass nickel pltd lgpattern.128 id f/w | 800 |
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| NAPPCO | TX | Flat Washer | Brass | Plain / Furnace Black | #4 | #4 fw smpattern brass.130id.280od.025thk | 1575 |
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| Cal Fastenrs | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | .129 x .500 x .030 | flat 18-8 304 ide f/w | 5,800 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .275 x 2.15 x .125 | .275 idx2.15 odx.125 thk flat | 1,500 |
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| Liberty | IL | Flat Washer | Steel | Plain / Furnace Black | 13/64 x 3/4 | flat clipped | 500 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #6 | ms15795-806 #6 flat small pattern small pattern 304ss small pattern | 1,295 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 | ms15795-842 10 flat 18-8 s/s 18-8 s/s 304ss 18-8 stainless steel | 220 |
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| Liberty | IL | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | .281 x .625 x .050 | .281 id x .625 od x .050 thick flat 316 stainless domestic with certs MS15795-81031SD | 60 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .255 x .463 x .063 | nas620-c416 flat 304ss | 45 |
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| Liberty | IL | Flat Washer | Steel | Plain / Furnace Black | .169 x .304 x .032 | nas620c8 dimensions only | 350 |
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| Liberty | IL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | 3/8 x 1/2 x 1/8 | flat | 130 |
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| Liberty | IL | Flat Washer | Steel | Zinc/Clear | 1/4 x 3/4 x 3/32 | thick flat rohs | 400 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Cadmium/Yellow | .406 x 2 | .406 (+.005/-.002) idx2 odx.125 thick 304 18-8 304 annealed cad qq-p-416 ty ii 3. | 40 |
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| Liberty | IL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .375 id (+/-.005)x1 od (+/-.005)x.375 thick (+/-.005) flat | 20 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .203 id (+/-.005) 562 od(+/-.010)x.180 thick 18-8 304 | 24 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .26 | 0/.270 idx.443/.448 odx.057/.069 thick 18-8 304 | 35 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .406 x 2 | .406 (+.005/-.002) idx2 odx.125 thick flat 304 18-8 304 annealed with test reports | 100 |
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| Liberty | IL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .244 x .433 x .039 | .244 idx.433 odx.039 thick flat | 10,000 |
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| Liberty | IL | Flat Washer | Steel | Plain / Furnace Black | .515 x 11/16 x 1/32 | .515 idx11/16x1/32 thick flat | 900 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .453 x .75 x .063 | 7/16 x 3/4 x 1/16 flat 18-8 s/s description only an960c716 description only an960c716 304ss description only an960c716 | 1,000 |
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| Liberty | IL | Flat Washer | Aluminum | Plain / Furnace Black | .25 | 1/.261 i.d.x1/2 (+/-.005) o.d.x.063 thick flat rohs compliant | 3,000 |
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| Liberty | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | #10 x 7/16 x .049 | minimum thickness flat 18-8 s/s | 570 |
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| Liberty | IL | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | .755 id (+/-.008)x1-1/2 od (+/-.010)x.130 thick (+/-.005) flat natural | 300 |
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| Liberty | IL | Flat Washer | Steel | Zinc/Yellow | .515 x .687 x .032 | .515 idx.687 odx.032 thick flat . | 5,000 |
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| U.S. SUPP | VA | Flat Washer | Grade A36 | Plain / Furnace Black | 3 x 5 1/2 | 3x5 1/2 f436 structural flat washers medium carbon plain | 600 |
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| Delta | TX | Flat Washer | Brass | Plain / Furnace Black | .377 x .562 x .032 | brass .377 idx.562 odx.032 t | 59 |
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| Delta | TX | Flat Washer | Steel | Zinc/Yellow | 1 | flat an series yellow zinc 1 | 47 |
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| Delta | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 5/8 | thick flat 18-8 sst 5/8 (.687 X 1.500 OD X 0.16-0.22 THICK) | 100 |
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| Delta | TX | Flat Washer | 316, 317, A4 Stainless | Plain / Furnace Black | 3/8 | thick flat 316 sst 3/8 (.406 X .875 OD X 0.16-0.22 THICK) | 450 |
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| Delta | TX | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | #10 | special nylon flat #10 ((.310/.190/.032) BLACK, ROHS) | 5000 |
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| Delta | TX | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | nylon flat 3/8 (625/380/062) | 830 |
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| Delta | TX | Flat Washer | Nylon (Polyamide) | Plain / Furnace Black | nylon flat 1/4 (500/257/062) | 743 |
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| Delta | TX | Flat Washer | 400 Stainless (405, 410,416,420,430 etc.) | Plain / Furnace Black | special flat 410 sst | 47 |
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| Buckeye | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .546 x 1.500 x .125 | .546 x 1.500 x .125 flat washer stainless | inquire |
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| Buckeye | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | .734 x 1.750 x .125 | .734 x 1.750 x.125 flat washer stainless steel | inquire |
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| Buckeye | OH | Flat Washer | Steel | Zinc/Yellow | washer assortment zinc yellow | inquire | < ul>Contact_Supplier | |
| Buckeye | OH | Flat Washer | Steel | Zinc/Clear | washer assortment zinc clear | inquire |
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| Buckeye | OH | Flat Washer | Steel | Plain / Furnace Black | ohio bc stlye weld washer with 1/2, i.d. | inquire |
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| Buckeye | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | hs3z 3816 welded to 1.500 od x .546 id x .125 thick ss washer | inquire |
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| CFI | IL | Flat Washer | Steel | Zinc/Clear | 0.316 x 0.65 x 0.05 | flat s flat | 2,500 |
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| CFI | IL | Flat Washer | Steel | Zinc/Clear | 0.34 x 0.63 x 3/64 | flat s flat | 75,000 |
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| CFI | IL | Flat Washer | Steel | Zinc/Clear | 8 | flat s flat | 23,750 |
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| CFI | IL | Flat Washer | Steel | Plain / Furnace Black | 0.39 x 17/32 x 0.066 | flat s star | 1,600,000 |
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| CFI | IL | Flat Washer | Steel | Zinc/Clear | 3/16 x 3/8 x 1/16 | flat s flat | 6,000 |
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| CFI | IL | Flat Washer | Steel | Zinc/Clear | 1/4 | flat s flat | 43,350 |
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| CFI | IL | Flat Washer | Fiber | Plain / Furnace Black | 0.288 x 9/16 x 0.025 | flat s grey | 18,000 |
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