5305-01-438-8285 SCREW,CLOSE TOLERANCE Index 5306-01-438-8287 BOLT,SHEAR

National Stock Number:
5310-01-438-8286

Federal Supply Class:
5310

National Item Identification Number:
014388286

Description:
NUT,SELF-LOCKING,EXTENDED WASHER

Detail:
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
NAS1758L1880205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
HARDNESS RATING45.0 ROCKWELL C MAXIMUM
LOCKING FEATUREPREVAILING TORQUE ALL NONMETALLIC DESIGN
MATERIAL
NOMINAL THREAD SIZE1.250 INCHES
NUT STYLEDOUBLE HEXAGON
OVERALL HEIGHT1.370 INCHES MAXIMUM
TEMP RATING450.0 FAHRENHEIT MAXIMUM
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH12
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
WASHER OUTSIDE DIAMETER1.875 INCHES MAXIMUM
WASHER THICKNESS0.170 INCHES MINIMUM
WIDTH ACROSS FLATS1.364 INCHES MINIMUM AND 1.377 INCHES MAXIMUM


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