5310-99-269-2148, WASHER,FLAT

National Stock Number:
5310-99-269-2148

Federal Supply Class:
5310

National Item Identification Number:
992692148

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:

12052329	K4244	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED
AM 01 08 21027	K4244	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	20.00 MILLIMETERS MINIMUM AND 20.33 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	USA ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR USA ASTM A711 ASSN STD SINGLE MATERIAL RESPONSE OR BSI BS970 PART 1 GRADE 431S29T NATIONAL SPEC 3RD MATERIAL RESPONSE OR BSI BS970 PART 3 GRADE 431S29T NATIONAL SPEC 4TH MATERIAL RESPONSE OR BSI BS EN 10088-1 NATIONAL SPEC 5TH MATERIAL RESPONSE
MATERIAL	STEEL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	GAG
PERIPHERAL SHAPE STYLE	ROUND
OUTSIDE LEFT CORNER CHAMFER ANGLE	44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
OUTSIDE RIGHT CORNER CHAMFER ANGLE	44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
OVERALL DIAMETER	44.880 MILLIMETERS MINIMUM AND 44.980 MILLIMETERS MAXIMUM
SURFACE FINISH	1.6 MICROMETERS ALL SURFACES
THICKNESS	5.97 MILLIMETERS MINIMUM AND 6.00 MILLIMETERS MAXIMUM

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