5310-01-144-7391, WASHER,KEY

National Stock Number:
5310-01-144-7391

Federal Supply Class:
5310

National Item Identification Number:
011447391

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:

BACW10BW29

77272

THE BOEING COMPANY

Techincal Specification:

MATERIAL	STEEL COMP 4130 OR
	STEEL COMP 4340 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR
	AMS 6415 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	DOD-P-16232,TY Z,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND
	36.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	KEY
EXTERNAL KEY QUANTITY	4
INTERNAL KEY QUANTITY	2
HOLE DIAMETER	3.370 INCHES MINIMUM AND
	3.390 INCHES MAXIMUM
OUTSIDE DIAMETER	4.013 INCHES MINIMUM AND
	4.033 INCHES MAXIMUM
EXTERNAL STRAIGHT KEY WIDTH	0.150 INCHES MINIMUM AND
	0.170 INCHES MAXIMUM
INTERNAL STRAIGHT KEY WIDTH	0.290 INCHES MINIMUM AND
	0.300 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY	1.530 INCHES MINIMUM AND
	1.550 INCHES MAXIMUM
OVERALL DISTANCE INCLUDING KEYS	4.193 INCHES MINIMUM AND
	4.213 INCHES MAXIMUM
MATERIAL THICKNESS	0.046 INCHES MINIMUM AND
	0.054 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES TOP
	63.0 MICROINCHES BOTTOM
SPECIAL FEATURES	INTERNAL KEYS 180.0 DEGREES APART OFFSET 12 DEG 16 MIN 22 SEC FROM CENTER LINE OF EXTERNAL KEYS
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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