5310-99-790-0211, WASHER,FLAT

National Stock Number:
5310-99-790-0211

Federal Supply Class:
5310

National Item Identification Number:
997900211

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:

12061511	K4244	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED
AM 01 03 21016	K4244	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	16.10 MILLIMETERS MINIMUM AND 16.25 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	ALUMINUM ALLOY 2014 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
OUTSIDE LEFT CORNER CHAMFER ANGLE	45.0 DEGREES NOMINAL
OVERALL DIAMETER	36.75 MILLIMETERS MINIMUM AND 37.25 MILLIMETERS MAXIMUM
SPECIAL FEATURES	INSIDE LEFT CORNER 4.80/5.00 MM RADIUS
SURFACE FINISH	1.6 MICROMETERS ALL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE OVERALL
THICKNESS	7.00 MILLIMETERS MINIMUM AND 7.50 MILLIMETERS MAXIMUM

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