5310-01-305-2587, WASHER,FLAT

National Stock Number:
5310-01-305-2587

Federal Supply Class:
5310

National Item Identification Number:
013052587

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:

65651-06114-102

78286

SIKORSKY AIRCRAFT CORPORATION

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	331.0 BRINELL MINIMUM AND 401.0 BRINELL MAXIMUM
HOLE DIAMETER	0.156 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
OUTSIDE LEFT CORNER CHAMFER ANGLE	45.0 DEGREES NOMINAL
OUTSIDE RIGHT CORNER CHAMFER ANGLE	45.0 DEGREES NOMINAL
OVERALL DIAMETER	0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5622 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 630 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SPECIAL FEATURES	MAGNETIC PARTICLE INSPECT
SURFACE FINISH	63.0 MICROINCHES ALL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	SS8435,CAGE CODE 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
TEST DATA DOCUMENT	78286-SS8805 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THICKNESS	0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM

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