5310-01-614-3204, WASHER,FLAT

National Stock Number:
5310-01-614-3204

Federal Supply Class:
5310

National Item Identification Number:
016143204

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:

12961190-1

19200

US ARMY ARDEC RDECOM

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.191 INCHES MINIMUM AND 0.201 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A167 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 304 OR STEEL COMP 302 OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER,FLAT
PERIPHERAL SHAPE STYLE	ROUND
PROPRIETARY CHARACTERISTICS	PACS
OVERALL DIAMETER	0.40 INCHES MINIMUM AND 0.41 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THICKNESS	0.003 INCHES MINIMUM AND 0.007 INCHES MAXIMUM

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