5310-01-144-7389 NUT,PLAIN,ROUND Index 5310-01-144-7391 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:
BACW10BW5977272THE BOEING COMPANY


Techincal Specification:
EXTERNAL KEY QUANTITY4
EXTERNAL STRAIGHT KEY WIDTH0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
INTERNAL STRAIGHT KEY WIDTH0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM
INTERNAL KEY QUANTITY1
OUTSIDE DIAMETER3.493 INCHES MINIMUM AND 3.513 INCHES MAXIMUM
OVERALL DISTANCE INCLUDING KEYS3.659 INCHES MINIMUM AND 3.679 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6415 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.071 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
MATERIALSTEEL COMP 4130 OR STEEL COMP 4340 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
SPECIAL FEATURESEXTERNAL 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
STYLE DESIGNATORKEY
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL


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