5310-00-167-0686 WASHER,RECESSED Index 5310-00-167-0689 WASHER,FLAT

National Stock Number:
5310-00-167-0688

Federal Supply Class:
5310

National Item Identification Number:
001670688

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:
AN960B101688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
NAS1149B1063H80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM
OVERALL DIAMETER1.183 INCHES MINIMUM AND 1.208 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCOPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM


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