5310-01-618-6274, WASHER,FLAT

5895-01-618-1403 COVER,ELECTRONIC COMMUNICATION E

National Stock Number:
5310-01-618-6274

Federal Supply Class:
5310

National Item Identification Number:
016186274

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:

AN960-C-516	88044	AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
NAS1149C0563R	61349	AMETEK, INC.
NAS1149C0563R	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

MATERIAL	STEEL COMP 301 OR
	STEEL COMP 302 OR
	STEEL COMP 304 OR
	STEEL COMP 316 OR
	STEEL COMP 321 OR
	STEEL COMP 347 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5901 ASSN STD 1ST MATERIAL RESPONSE OR
	AMS5516 ASSN STD 2ND MATERIAL RESPONSE OR
	AMS5513 ASSN STD 3RD MATERIAL RESPONSE OR
	AMS5524 ASSN STD 4TH MATERIAL RESPONSE OR
	AMS5510 ASSN STD 5TH MATERIAL RESPONSE OR
	AMS5512 ASSN STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2700, METHOD 1, TYPE 6 OR TYPE 7, CLASS1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.318 INCHES MINIMUM AND
	0.338 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE	ROUND
OVERALL DIAMETER	0.557 INCHES MINIMUM AND
	0.582 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
THICKNESS	0.057 INCHES MINIMUM AND
	0.069 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA	80205-NAS1149C0563R PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER FLAT
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	AN960-C-516

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