5310-01-522-1351, WASHER,FLAT

National Stock Number:
5310-01-522-1351

Federal Supply Class:
5310

National Item Identification Number:
015221351

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:

005-113-00	15460	DEXTER AXLE COMPANY
005-113-00	1L160	SUPERIOR WASHER & GASKET CORP.
005-113-00	74B05	AEROBASE GROUP INC

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.560 INCHES NOMINAL
INSIDE LEFT CORNER CHAMFER ANGLE	0.1 RADIANS NOMINAL
MATERIAL	STEEL COMP 1010 OVERALL AND STEEL COMP 1011 OVERALL AND STEEL COMP 1012 OVERALL AND STEEL COMP 1013 OVERALL AND STEEL COMP 1015 OVERALL AND STEEL COMP 1016 OVERALL AND STEEL COMP 1017 OVERALL AND STEEL COMP 1018 OVERALL AND STEEL COMP 1019 OVERALL AND STEEL COMP 1020 OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER-ANCHOR POST; 12 X 2 HYDRAULIC BRAKE
III SUPPLEMENTARY FEATURES	ZINC DICHROMATE FINISH; O/A LENGTH 2.50 IN; O/A WIDTH 0.56 IN
PERIPHERAL SHAPE STYLE	ROUND
PROPRIETARY CHARACTERISTICS	PACS
OVERALL DIAMETER	0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
SURFACE TREATMENT	DICHROMATE ZINC OVERALL
THICKNESS	0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM

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