3040-00-712-8128 GEARSHAFT,HELICAL Index 5310-00-712-8134 WASHER,SPRING TENSION

National Stock Number:
5310-00-712-8131

Federal Supply Class:
5310

National Item Identification Number:
007128131

Description:
NUT,SELF-LOCKING,EXTENDED WASHER

Detail:
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
712813119204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
LOCKING FEATUREFREE-RUNNING ALL METAL DESIGN
OVERALL HEIGHT1.031 INCHES MINIMUM AND 1.062 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 4140 OR STEEL COMP 8640 OVERALL
NOMINAL THREAD SIZE1.500 INCHES
NUT STYLEHEXAGON
WASHER OUTSIDE DIAMETER2.690 INCHES MINIMUM AND 2.700 INCHES MAXIMUM
WASHER THICKNESS0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
WIDTH ACROSS FLATS1.984 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH12
THREAD SERIESUNF


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