5310-01-617-1587, WASHER,FLAT

National Stock Number:
5310-01-617-1587

Federal Supply Class:
5310

National Item Identification Number:
016171587

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:

B18.22M	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
B1822AS100N	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED

Techincal Specification:

MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-P-416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE II,CLASS 3(5.1MM PLATING THICKNESS) FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	10.85 MILLIMETERS MINIMUM AND
	11.12 MILLIMETERS MAXIMUM
PERIPHERAL SHAPE STYLE	ROUND
OVERALL DIAMETER	19.48 MILLIMETERS MINIMUM AND
	20.00 MILLIMETERS MAXIMUM
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
THICKNESS	1.60 MILLIMETERS MINIMUM AND
	2.30 MILLIMETERS MAXIMUM
SPECIFICATION/STANDARD DATA	80204-ANSI B18.22M NATIONAL STD/SPEC
PART NAME ASSIGNED BY CONTROLLING AGENCY	METRIC PLAIN WASHER

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