5340-01-516-3777 COVER,ACCESS Index 5305-01-516-3779 SCREW,CAP,SOCKET HEAD

National Stock Number:
5310-01-516-3778

Federal Supply Class:
5310

National Item Identification Number:
015163778

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:
10469501A486GNIMIKKEISTOKESKUS NCB FINLAND
MBEU14809330003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
MBEU148093U1604MARTIN-BAKER AIRCRAFT COMPANY LIMITED


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM
OVERALL DIAMETER0.690 INCHES MINIMUM AND 0.700 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM AND NICKEL AND COPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH125.0 MICROINCHES ALL SURFACES
THICKNESS0.065 INCHES MINIMUM AND 0.070 INCHES MAXIMUM


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