5305-01-421-1976 SCREW,CLOSE TOLERANCE Index 5306-01-421-1978 BOLT,MACHINE

National Stock Number:
5310-01-421-1977

Federal Supply Class:
5310

National Item Identification Number:
014211977

Description:
NUT,SELF-LOCKING,PLATE

Detail:
A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
MS21058-596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
HARDNESS RATING49.0 ROCKWELL C MAXIMUM
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
OVERALL HEIGHT0.422 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
MOUNTING HOLE DIAMETER0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.422 INCHES MAXIMUM
NUT LENGTH1.044 INCHES MAXIMUM
NUT MOUNTING PROVISIONSTRAIGHT HOLES
NUT STYLEPLATE
PLATE THICKNESS0.065 INCHES MAXIMUM
PRECIOUS MATERIAL AND LOCATIONALLSURFACES SILVER
PRECIOUS MATERIALSILVER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTSILVER OVERALL
TEMP RATING800.0 FAHRENHEIT NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH24


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