5310-00-257-5850, WASHER,KEY

National Stock Number:
5310-00-257-5850

Federal Supply Class:
5310

National Item Identification Number:
002575850

Description:
WASHER,KEY

Detail:
A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.

Manufacturer Information:

A51G20121-14	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51G20121-14	61174	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51G20121-14	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

MATERIAL	STEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-8837,TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND
	37.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	KEY
HOLE DIAMETER	0.470 INCHES MINIMUM AND
	0.480 INCHES MAXIMUM
OUTSIDE DIAMETER	0.703 INCHES MINIMUM AND
	0.735 INCHES MAXIMUM
EXTERNAL PREBENT KEY LENGTH	0.045 INCHES MINIMUM AND
	0.055 INCHES MAXIMUM
EXTERNAL PREBENT KEY WIDTH	0.105 INCHES MINIMUM AND
	0.115 INCHES MAXIMUM
INTERNAL STRAIGHT KEY WIDTH	0.059 INCHES MINIMUM AND
	0.065 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY	0.216 INCHES MINIMUM AND
	0.220 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY	0.349 INCHES MINIMUM AND
	0.359 INCHES MAXIMUM
OVERALL DISTANCE INCLUDING KEYS	0.748 INCHES MINIMUM AND
	0.755 INCHES MAXIMUM
MATERIAL THICKNESS	0.038 INCHES NOMINAL
SPECIAL FEATURES	INTERNAL KEY 135 DEG FROM PREBENT KEY
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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