5310-01-256-9731, WASHER,LOCK

National Stock Number:
5310-01-256-9731

Federal Supply Class:
5310

National Item Identification Number:
012569731

Description:
WASHER,LOCK

Detail:
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Manufacturer Information:

FF-W-100	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51413-4	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

HARDNESS RATING	89.0 ROCKWELL B MINIMUM AND 94.0 ROCKWELL B MAXIMUM
HOLE DIAMETER	0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM
OUTSIDE DIAMETER	0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL THICKNESS	0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM
MATERIAL	STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1054 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1062 OR STEEL COMP 1064 OVERALL
STYLE DESIGNATOR	FLAT INTERNAL TEETH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL

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