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USS Flat Washers , Zinc/Clear (ASME B18. 22.1)
USS Flat Washers were among the first known commercial flat washers in the U.S.A. They are characterized as having a loose fit, and have a larger outside diameter than SAE Flat washers. The USS designation was derived from the name “Unified Standard Series.” At the time, coarse threaded bolts were called USS bolts.
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| Buy USS Flat Washers from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1-2 1/2 | 1 uss f/w stl znc (2-1/2 od) b18.22.1 | 649 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 10 9/16 | #10 uss f/w stl znc (9/16 od) b18.22.1 | 20569 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/4 | 1 1/4 uss f/w stl znc (3 od) b18.22.1 | 131 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1 1/8 uss f/w stl znc (2-3/4 od) b18.22.1 | 27 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 2-4 1/2 | 2 uss f/w stl znc (4-1/2 od) b18.22.1 | 23 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1 3/8 uss f/w stl znc (3-1/4 od) b18.22.1 | 124 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/2 | 1 1/2 uss f/w stl znc (3-1/2 od) b18.22.1 | 124 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/4 | 1 3/4 uss f/w stl znc (4 od) b18.22.1 | 97 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 uss f/w stl znc (3/4 od) b18.22.1 | 106540 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 uss f/w stl znc (3/4 od) b18.22.1 | 2935 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/16 uss f/w stl znc (7/8 od) b18.22.1 | 5893 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/16-100 | 5/16 uss f/w (100/bag) stl znc (7/8 od) b18.22.1 | 2000 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-1 | 3/8 uss f/w stl znc (1 od) b18.22.1 | 30050 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-100 | 3/8 uss f/w (100/bag) stl znc (1 od) b18.22.1 | 2491 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 7/16-1 1/4 | 7/16 uss f/w stl znc (1-1/4 od) b18.22.1 | 1320 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 7/16-1 1/4 | 7/16 uss f/w stl znc (1-1/4 od) b18.22.1 | 394 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss f/w dom hrd stl zinc (1-3/8 od) b18.22.1 | 200 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 5396 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 846 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 9/16-1 1/2 | 9/16 uss f/w stl znc (1-1/2 od) b18.22.1 | 1284 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1 | 1 uss flat stl zc b18.22.1 () () () | 407 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | #10 | #10 uss flat stl zc b18.22.1 () () () | 12218 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat stl zc b18.22.1 () () () | 11007 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat stl zc domestic b18.22.1 () () () | 148 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 uss flat stl zc crz3 b18.22.1 () () () | 26423 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1 1/2 | 1-1/2 uss flat stl zc b18.22.1 () () () | 32 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1 1/4 | 1-1/4 uss flat stl zc b18.22.1 () () () | 50 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1-1/8 uss flat stl zc b18.22.1 () () () | 388 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1 5/8 | 1-5/8 uss flat stl zc b18.22.1 () () () | 18 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1-3/8 uss flat stl zc b18.22.1 () () () | 268 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss flat stl zc b18.22.1 () () () | 4697 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat stl zc b18.22.1 () () () | 10972 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 uss flat stl zc b18.22.1 () () () | 11850 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 7/16 | 7/16 uss flat stl zc b18.22.1 () () () | 5322 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat stl zc b18.22.1 () () () | 2830 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 7/8 | 7/8 uss flat stl zc b18.22.1 () () () | 303 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 9/16 | 9/16 uss flat stl zc b18.22.1 () () () | 9141 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat thru-hard stl zc domestic b18.22.1 () () () | 87 |
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| GLF | OH | USS Flat Washer | Grade 5 | Zinc/Clear | 5/16 | 5/16 uss flat grade 5 stl zc b18.22.1 () () () | 3176 |
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| GLF | OH | USS Flat Washer | Grade 5 | Zinc/Clear | 3/8 | 3/8 uss flat grade 5 stl zc b18.22.1 () () () | 1755 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 1 | 1 uss flat washer steel zinc b18.22.1 | 35 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 uss flatwashers steel zinc trivalent clear b18.22.1 | 27359 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flatwasher steel zinc trivalent clear b18.22.1 | 12708 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 stl uss flatwashers zinc trivalent clear b18.22.1 | 6000 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 uss flatwashers steel zinc trivalent clear b18.22.1 | 1650 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss flatwashers (13/16 id) zinc b18.22.1 | 382 |
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| ASMC | IL | USS Flat Washer | Grade 8 | Zinc/Clear | 3/8 | gr8 flat USS pattern-usa med carb zp b18.22.1 | 2,360 |
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| ASMC | IL | USS Flat Washer | Grade 8 | Zinc/Clear | 1/2 | 1/2 gr8 flat washer uss pattern-usa med carb zp b18.22.1 | 37 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1-2 1/2 | 1 uss f/w stl znc (2-1/2 od) b18.22.1 | 100 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 10 9/16 | #10 uss f/w stl znc (9/16 od) b18.22.1 | 800 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/4 | 1 1/4 uss f/w stl znc (3 od) b18.22.1 | 25 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 2-4 1/2 | 2 uss f/w stl znc (4-1/2 od) b18.22.1 | 5 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1 3/8 uss f/w stl znc (3-1/4 od) b18.22.1 | 25 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/2 | 1 1/2 uss f/w stl znc (3-1/2 od) b18.22.1 | 20 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/4 | 1 3/4 uss f/w stl znc (4 od) b18.22.1 | 25 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 uss f/w stl znc (3/4 od) b18.22.1 | 4700 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 uss f/w stl znc (3/4 od) b18.22.1 | 600 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/16 uss f/w stl znc (7/8 od) b18.22.1 | 3000 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-1 | 3/8 uss f/w stl znc (1 od) b18.22.1 | 6400 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-100 | 3/8 uss f/w (100/bag) stl znc (1 od) b18.22.1 | 200 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 7/16-1 1/4 | 7/16 uss f/w stl znc (1-1/4 od) b18.22.1 | 800 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 500 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 150 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 9/16-1 1/2 | 9/16 uss f/w stl znc (1-1/2 od) b18.22.1 | 350 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-1 3/4 | 5/8 uss f/w stl znc (1-3/4 od) b18.22.1 | 550 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-1 3/4 | 5/8 uss f/w stl znc (1-3/4 od) b18.22.1 | 275 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/4-2 | 3/4 uss f/w stl znc (2 od) b18.22.1 | 455 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/4-2 | 3/4 uss f/w stl znc (2 od) b18.22.1 | 75 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 3/8 x 1 | 3/8x1 od uss flat -low carbon-zinc-cr3 bbi# 344004 b18.22.1 | 1267 |
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| General F | MI | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss fw zn b18.22.1 | 11125 |
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| Standard | MA | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 uss flat washer zinc plated steel b18.22.1 | 70 |
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| General F | MI | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss fw zn b18.22.1 | 30180 |
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| General F | MI | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss fw zn b18.22.1 | 1820 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | #10 | #10 uss flat zinc b18.22.1 | 5484 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 uss flat triv zinc b18.22.1 | 23800 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 uss flat triv zinc b18.22.1 | 22389 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 uss flat triv zinc b18.22.1 | 784 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 uss flat triv zinc b18.22.1 | 133313 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 uss flat triv zinc b18.22.1 | 25032 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat zinc b18.22.1 | 3220 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat zinc b18.22.1 | 15508 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat zinc b18.22.1 | 98 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc b18.22.1 | 496 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc b18.22.1 | 27441 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc b18.22.1 | 18610 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 flat uss wrought iron z b18.22.1 | 6100 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 flat uss wrought iron z b18.22.1 | 4207 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat triv zinc b18.22.1 | 240 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat triv zinc b18.22.1 | 12678 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat triv zinc b18.22.1 | 920 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss flat zinc b18.22.1 | 470 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss flat zinc b18.22.1 | 210 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 7/8 | 7/8 uss flat zinc b18.22.1 | 325 |
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| B & K FAST | PA | USS Flat Washer | Grade 8 | Zinc/Clear | 3/8 | 3/8 uss thru-hard flat washers gr 8 zinc b18.22.1 | 1.45 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | #10 | #10 uss flat washers zinc b18.22.1 | 200 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | #12 | #12 uss flat washers zinc b18.22.1 | 106876 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 3/16 uss flat washers zinc 9/16 od b18.22.1 | 785 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 uss flat washers zinc b18.22.1 | 6311.328422877 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 uss flat washers zinc b18.22.1 | 55.038 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat washers zinc b18.22.1 | 106.137 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 7/16 | 7/16 uss flat washers zinc b18.22.1 | 554.33 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat washers zinc b18.22.1 | 201.840000012 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat washers zinc domestic b18.22.1 | 613 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 9/16 | 9/16 uss flat washers zinc b18.22.1 | 122.52 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat washers zinc b18.22.1 | 151.29 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss flat washers zinc b18.22.1 | 89.85 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 uss flat washers zinc domestic b18.22.1 | 64 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 7/8 | 7/8 uss flat washers zinc b18.22.1 | 235.34 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 7/8 | 7/8 uss flat washers zinc domestic b18.22.1 | 253 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1 | 1 uss flat washers zinc b18.22.1 | 4074.93 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1 | 1 uss flat washers zinc domestic b18.22.1 | 489 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1 1/8 uss flat washers zinc b18.22.1 | 0.11 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1 1/8 uss flat washers zinc domestic b18.22.1 | 572 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 5/16 x .875 x .083 | 5/16x.875x.083 flat washer steel zinc plated uss b18.22.1 | 25396 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8 x 1.00 x .100 | 3/8x1.00x.100 flat washer steel zinc plated uss b18.22.1 | 5420 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | #10 x .562 x .049 | #10x.562x.049 flat washer steel zinc uss b18.22.1 | 4100 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 x .750 x .062 | 1/4x.750x.062 flat washer steel zinc plated uss b18.22.1 | 3704 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 washers flat washers (thru haroundened) uss steel flat washer (usa) thru-hardened zinc cr+3 (inch) b18.22.1 | 5 |
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| Wurth | Ont | USS Flat Washer | Steel | Zinc/Clear | 9/16 | wsh flt uss a w st (zn) 9/16 b18.22.1 | 50 |
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| Wurth | Ont | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | washer flt uss a w st (zn) 1 1/8 b18.22.1 | 18 |
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| THRDFAST | FL | USS Flat Washer | Steel | Zinc/Clear | 9/16 | USS f/w b18.22.1 | 550 |
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| THRDFAST | FL | USS Flat Washer | Steel | Zinc/Clear | 1 3/4 | USS f/w b18.22.1 | 184 |
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| THRDFAST | FL | USS Flat Washer | Grade 8 | Zinc/Clear | 1 | 1 gr 8 USS f/w domestic b18.22.1 | 122 |
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| THRDFAST | OK | USS Flat Washer | Steel | Zinc/Clear | 9/16 | USS f/w b18.22.1 | 720 |
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| THRDFAST | OK | USS Flat Washer | Steel | Zinc/Clear | 1/2 | USS f/w domestic b18.22.1 | 34 |
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| THRDFAST | AL | USS Flat Washer | Grade 8 | Zinc/Clear | 3/8 | 3/8 gr 8 USS f/w b18.22.1 | 3,000 |
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| THRDFAST | AL | USS Flat Washer | Steel | Zinc/Clear | 9/16 | USS f/w b18.22.1 | 420 |
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| THRDFAST | MS | USS Flat Washer | Steel | Zinc/Clear | 5/8 | USS f/w domestic b18.22.1 | 22 |
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| Davis | IL | USS Flat Washer | Steel | Zinc/Clear | .498 x 1.25 x .090 | .498 id x 1.25 od x .090 thk ( 7/16 uss ) flat washer-steel zinc b18.22.1 | 3,250 |
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| Davis | IL | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat washer-steel zinc b18.22.1 | 500 |
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