3130-01-386-6053 CAP,PILLOW BLOCK Index 5305-01-386-6055 SCREW,CAP,SOCKET HEAD

National Stock Number:
5310-01-386-6054

Federal Supply Class:
5310

National Item Identification Number:
013866054

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:
02355-114153DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
MATERIALPLASTIC POLYAMIDE LOCKING INSERT
STEEL CORROSION RESISTING NUT
NUT STYLEHEXAGON
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
THREAD SERIESUNC
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3B
SURFACE TREATMENTPASSIVATE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT
NUT HEIGHT0.266 INCHES MINIMUM AND
0.296 INCHES MAXIMUM
WIDTH ACROSS FLATS0.492 INCHES MINIMUM AND
0.502 INCHES MAXIMUM
TEMP RATING250.0 DEG FAHRENHEIT MAXIMUM
SPECIAL FEATURESSAFETY CRITICAL THREAD PER FED STD H28/20 SYSTEM 22
CRITICALITY CODE JUSTIFICATIONFEAT


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