5310-00-625-3892, WASHER,KEY

National Stock Number:
5310-00-625-3892

Federal Supply Class:
5310

National Item Identification Number:
006253892

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:

BACW10BW25	05141	MCMELLON BROS., INCORPORATED
BACW10BW25	78507	STANDARD LOCKNUT, L.L.C.
BACW10BW25	81205	THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY	1.326 INCHES MINIMUM AND 1.346 INCHES MAXIMUM
EXTERNAL KEY QUANTITY	4
EXTERNAL STRAIGHT KEY WIDTH	0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	2.963 INCHES MINIMUM AND 2.983 INCHES MAXIMUM
INTERNAL STRAIGHT KEY WIDTH	0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM
INTERNAL KEY QUANTITY	2
OUTSIDE DIAMETER	3.450 INCHES MINIMUM AND 3.470 INCHES MAXIMUM
OVERALL DISTANCE INCLUDING KEYS	3.612 INCHES MINIMUM AND 3.632 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS	0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM
MATERIAL	STEEL COMP 4130 OVERALL
SPECIAL FEATURES	INTERNAL KEYS 180 DEG APART OFFSET 13 DEG 57 MIN 56 SEC FROM CENTER LINE OF EXTERNAL KEYS
STYLE DESIGNATOR	KEY
SURFACE FINISH	63.0 MICROINCHES BOTTOM
SURFACE FINISH	63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-16332,TYPE 3,CLASS 4A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE OVERALL

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