5310-01-522-7972, WASHER,FLAT

6625-01-522-7971 TEST SET,ELECTRICAL POWER

National Stock Number:
5310-01-522-7972

Federal Supply Class:
5310

National Item Identification Number:
015227972

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:

BACW10BP04APU	43999	THE BOEING COMPANY
BACW10BP4APU	3LRU1	SPEC TECH USA INC
BACW10BP4APU	81205	THE BOEING COMPANY
BACW10BP4APU	Z03F0	BOEING DEFENCE AUSTRALIA LTD
BACW10BP4APU	Z8T75	BOEING DEFENCE AUSTRALIA LTD

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.250 INCHES MINIMUM AND 0.261 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	IRON ALLOY 660 OVERALL
III MINIMUM TENSILE STRENGTH	140000 POUNDS PER SQUARE INCH
III PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER, PLAIN
PERIPHERAL SHAPE STYLE	ROUND
PROPRIETARY CHARACTERISTICS	PACS
OVERALL DIAMETER	0.475 INCHES MINIMUM AND 0.495 INCHES MAXIMUM
SPECIAL FEATURES	HEAT TREAT TO MINIMUM TENSILE STRENGTH PER AMS-H-6875; SERVICE TEMPERATURE 1200.0 DEGREES F. MAXIMUM; USE ON ELEVATOR CONTROL, POWER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS-QQ-P-35, TYPE II OR TYPE VIII ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THICKNESS	0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM

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