3020-01-120-8497 GEAR RACK Index 4820-01-120-8499 VALVE,CHECK

National Stock Number:
5310-01-120-8498

Federal Supply Class:
5310

National Item Identification Number:
011208498

Description:
NUT,PLAIN,EXTENDED WASHER,HEXAGO

Detail:
A NUT HAVING 6 FLAT SIDES AND AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE FLATS OR PERIPHERY.


Manufacturer Information:
1092993919207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
HARDNESS RATING32.0 ROCKWELL C NOMINAL
NUT STYLEHEXAGON
WASHER OUTSIDE DIAMETER0.660 INCHES MINIMUM AND
0.680 INCHES MAXIMUM
OVERALL HEIGHT0.318 INCHES MINIMUM AND
0.338 INCHES MAXIMUM
WASHER THICKNESS0.025 INCHES MINIMUM AND
0.050 INCHES MAXIMUM
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND
0.500 INCHES MAXIMUM


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