5310-00-181-6118, WASHER,FLAT

5310-00-181-6121 NUT,PLAIN,ASSEMBLED WASHER

National Stock Number:
5310-00-181-6118

Federal Supply Class:
5310

National Item Identification Number:
001816118

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:

NAS1401-4-3

80205

NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

MATERIAL	STEEL OR
	STEEL COMP 1008 OR
	STEEL COMP 1009 OR
	STEEL COMP 1010 OR
	STEEL COMP 1015 OR
	STEEL COMP 1018 OR
	STEEL COMP 1020 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7952 MIL SPEC 1ST MATERIAL RESPONSE OR
	QQ-S-698 FED SPEC 1ST MATERIAL RESPONSE AND
	QQ-S-698 T2 FED SPEC 2ND MATERIAL RESPONSE AND
	QQ-S-698 T2 FED SPEC 3RD MATERIAL RESPONSE AND
	QQ-S-698 FED SPEC 4TH MATERIAL RESPONSE AND
	QQ-S-698 T2 FED SPEC 5TH MATERIAL RESPONSE AND
	QQ-S-698 T2 FED SPEC 6TH MATERIAL RESPONSE AND
	QQ-S-698 T2 FED SPEC 7TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.255 INCHES MINIMUM AND
	0.275 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE	SQUARE
WIDTH ACROSS FLATS	0.510 INCHES MINIMUM AND
	0.570 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
THICKNESS	0.090 INCHES NOMINAL
SPECIAL FEATURES	0.060 IN. RADIUS ALL CORNERS,0.090 IN. RADIUS ONE SIDE OF ONE END OR 45 DEG CHAMFER OPTIONAL
SPECIFICATION/STANDARD DATA	80205-NAS1401 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

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