National Item Identification Number

01-119-3672

National Stock Number

Item Name

WASHER,FLAT

Federal Supply Class

5310

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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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75160

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NSN (National Stock Number) 5310-01-119-3672, 5310011193672 NIIN (National Identification Number) 01-119-3672, 011193672

Part Numbers (Reference Numbers)

T20168

Required Categories

MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S

Required Description

STEEL COMP 1045 OVERALL
0.506 INCHES MINIMUM AND
0.526 INCHES MAXIMUM
1 ROUND