National Item Identification Number

00-527-8623

National Stock Number

Item Name

WASHER,FLAT

Federal Supply Class

5310

Description

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.

Commercial and Government Entity Code (Supplier Data)

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31361

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U0189

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TURNER DIESEL LTD WOODWARD GOVERNORS
& CONTROLS
UNIT 2 ORTHEUS HOUSE CALLEVA HOUSE
ALDERMASTON READING
RG7 8TA
UNITED KINGDOM
0118 981 5176

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31361

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66503

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Reference Numbers (Part Numbers)

03040-31
186049
186049
186049

Required Categories

MATERIAL
SURFACE TREATMENT
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAM

Required Description

COPPER OVERALL
CADMIUM OVERALL
0.328 INCHES NOMINAL
1 ROUND
0.531 INCHES NOM