5305-00-576-2350 SCREW,CLOSE TOLERANCE Index 5305-00-576-2353 SCREW,CAP,SOCKET HEAD

National Stock Number:
5310-00-576-2351

Federal Supply Class:
5310

National Item Identification Number:
005762351

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:
856706KW9LUCENT TECHNOLOGIES INC DBA FEDERAL MARKETING GROUP
856757712TELEMECHANICS INC
856764959AMERICAN TELEPHONE AND TELEGRAPH CO
856770408AT AND T CORP
FF-W-92B TYPE A GRADE 1 CLASS A81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.440 INCHES NOMINAL
OVERALL DIAMETER0.625 INCHES NOMINAL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTZINC OVERALL
THICKNESS0.031 INCHES NOMINAL


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