5310-00-638-1894 NUT,PLAIN,KNURLED Index 5310-00-638-1896 WASHER,RECESSED

National Stock Number:
5310-00-638-1895

Federal Supply Class:
5310

National Item Identification Number:
006381895

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:
G60602806KW9LUCENT TECHNOLOGIES INC DBA FEDERAL MARKETING GROUP
G60602864959AMERICAN TELEPHONE AND TELEGRAPH CO
G60602870408AT AND T CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.143 INCHES MINIMUM AND 0.148 INCHES MAXIMUM
OVERALL DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 301 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.023 INCHES MINIMUM AND 0.033 INCHES MAXIMUM


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