5310-01-105-9389 WASHER,KEY Index 5310-01-105-9391 WASHER,FLAT

National Stock Number:
5310-01-105-9390

Federal Supply Class:
5310

National Item Identification Number:
011059390

Description:
WASHER,FLAT

Detail:
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.


Manufacturer Information:
65C35291-130ZLV2GSE PRODUCTION AND SUPPORT LLC
65C35291-1398296STANDARD MFG CO INC
65C35291-1398750SAN ANTONIO AIR LOGISTICS CENTER


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.781 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613,TEMPER HALF HARD FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCOPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL
OVERALL DIAMETER1.750 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
THICKNESS0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM


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