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USS Flat Washers , 316, 317, A4 Stainless (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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SupplierLocTypeMaterialFinishSizeDescriptionQty 
GLFOHUSS Flat Washer316, 317, A4 StainlessPlain3/43/4 uss flat 316 s/s b18.22.1 () () ()166
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain1/21/2 uss flat 316 s/s b18.22.1 () () ()227
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain5/85/8 uss flat 316 s/s b18.22.1 () () ()535
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain5/165/16 uss flat 316 s/s b18.22.1 () () ()547
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain1/41/4 uss flat 316 s/s b18.22.1 () () ()1554
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain1/21/2 uss flat 316 s/s domestic b18.22.1 () () ()68
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain1/41/4 uss flat 316 s/s domestic b18.22.1 () () ()92
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain3/83/8 uss flat 316 s/s domestic b18.22.1 () () ()100
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain5/165/16 uss flat 316 s/s domestic b18.22.1 () () ()92
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B & K FASTPAUSS Flat Washer316, 317, A4 StainlessPlain1/2 x 1 3/81/2 x 1 3/8 od uss flat washer t-316 stainless b18.22.1181
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