5310-01-054-5977, WASHER,FLAT

National Stock Number:
5310-01-054-5977

Federal Supply Class:
5310

National Item Identification Number:
010545977

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:

BACW10BN6P

81205

THE BOEING COMPANY

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.376 INCHES MINIMUM AND 0.387 INCHES MAXIMUM
OVERALL DIAMETER	0.725 INCHES MINIMUM AND 0.745 INCHES MAXIMUM
MATERIAL	STEEL COMP 4130 OR STEEL COMP 4135 OR STEEL COMP 8630 OR STEEL COMP 8735 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SPECIFICATION/STANDARD DATA	81205-BACW10BN MANUFACTURERS STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	NICKEL AND CADMIUM OVERALL
THICKNESS	0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM

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