5310-00-550-0743 NUT,SELF-LOCKING,HEXAGON Index 5320-00-550-0745 PIN-RIVET

National Stock Number:
5310-00-550-0744

Federal Supply Class:
5310

National Item Identification Number:
005500744

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:
1048637-559364HONEYWELL INTERNATIONAL INC.
1048637-577068ALLIED-SIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO ELECTRODYNAMICS DIV
CP10-3-4-42825500LOCKHEED MARTIN CORPORATION
LHTE04872962HARVARD INDUSTRIES INC
MILN2502781349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
BEARING SURFACE TYPEANY ACCEPTABLE
THREAD SERIESUNF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
SURFACE TREATMENTCADMIUM OVERALL
NUT HEIGHT0.203 INCHES MINIMUM AND
0.218 INCHES MAXIMUM
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND
0.440 INCHES MAXIMUM
TEMP RATING550.0 DEG FAHRENHEIT NOMINAL
SPECIAL FEATURESUPPER THD PORTION DEFORMED ELLIPTICALLY TO PRODUCE SELF-LOCKING ACTION
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMILN25027


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