5310-01-398-0318 WASHER,FLAT Index 5340-01-398-0320 HINGE,BUTT

National Stock Number:
5310-01-398-0319

Federal Supply Class:
5310

National Item Identification Number:
013980319

Description:
NUT,SELF-LOCKING,HEXAGON

Detail:
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP.


Manufacturer Information:
942421524617GENERAL MOTORS CORP


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
NUT STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.250 INCHES
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B


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