5310-01-031-8387, WASHER,FLAT

National Stock Number:
5310-01-031-8387

Federal Supply Class:
5310

National Item Identification Number:
010318387

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:

2510072

10001

NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
COLOR	BLACK OVERALL
CRITICALITY CODE JUSTIFICATION	ZZZW
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
DEPARTURE FROM CITED DOCUMENT	AS MODIFIED BY SPECIAL QUALITY CONTROL TESTING FOR MK 48 TORPED0
HARDNESS RATING	27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM
OVERALL DIAMETER	0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	A1S1 41L40 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	OXIDE FILM OVERALL
THICKNESS	0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM

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