5310-01-615-2545, WASHER,FLAT

National Stock Number:
5310-01-615-2545

Federal Supply Class:
5310

National Item Identification Number:
016152545

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:

HS4244C9

8V613

THE BOEING COMPANY

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.564 INCHES MINIMUM AND 0.568 INCHES MAXIMUM
INSIDE LEFT CORNER CHAMFER ANGLE	44.5 DEGREES MINIMUM AND 45.5 DEGREES MAXIMUM
OVERALL DIAMETER	0.958 INCHES MINIMUM AND 0.978 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18729 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER,CLOSE TOLERANCE
PERIPHERAL SHAPE STYLE	ROUND
SPECIAL FEATURES	COUNTERSUNK FLAT WASHER HAS CHAMFER DIAMETER OF 0.689 IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TYPE 1 CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THICKNESS	0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM

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