5310-01-144-7390, WASHER,KEY

National Stock Number:
5310-01-144-7390

Federal Supply Class:
5310

National Item Identification Number:
011447390

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:

BACW10BW59

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 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	1
OUTSIDE DIAMETER	3.493 INCHES MINIMUM AND
	3.513 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
OVERALL DISTANCE INCLUDING KEYS	3.659 INCHES MINIMUM AND
	3.679 INCHES MAXIMUM
MATERIAL THICKNESS	0.071 INCHES MINIMUM AND
	0.079 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES TOP
	63.0 MICROINCHES BOTTOM
SPECIAL FEATURES	EXTERNAL KEYS 90 DEG APART AND OFFSET 13 DEG 57 MIN 56 SEC FROM CENTER LINE OF EXTERNAL KEY AND ANGLE BETWEEN FIRST AND SECOND KEY FROM CENTER LINE 86 DEG 53 MIN 48 SEC AND ANGLE BETWEEN THIRD AND FOURTH KEY FROM CENTER LINE 86 DEG 53 MIN 48 SEC
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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