5310-01-423-6702, WASHER,FLAT

National Stock Number:
5310-01-423-6702

Federal Supply Class:
5310

National Item Identification Number:
014236702

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:

LD153-0027A2007

43999

THE BOEING COMPANY

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.559 INCHES MINIMUM AND 0.569 INCHES MAXIMUM
OVERALL DIAMETER	0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP XM-13 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SPECIAL FEATURES	WASHER TO BE USED WITH BOLTS HAVING A TENSILE STRENGTH OF 220 MIN KSI.
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE OVERALL
THICKNESS	0.054 INCHES MINIMUM AND 0.070 INCHES MAXIMUM

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