5310-01-086-4923, WASHER,FLAT

National Stock Number:
5310-01-086-4923

Federal Supply Class:
5310

National Item Identification Number:
010864923

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:

2W1P16-32-62

43999

THE BOEING COMPANY

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 3605 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
MATERIAL	PLASTIC PHENOL FORMALDEHYDE (PMO) OVERALL
MINIMUM TENSILE STRENGTH	750000 POUNDS PER SQUARE INCH
OVERALL DIAMETER	0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE	ROUND
SPECIFICATION/STANDARD DATA	43999-2W1 MANUFACTURERS STANDARD
THICKNESS	0.0545 INCHES MINIMUM AND 0.0695 INCHES MAXIMUM

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