4140-01-501-2944 CONTROL UNIT,FAN Index 1560-01-501-2946 SKIN,AIRCRAFT

National Stock Number:
4730-01-501-2945

Federal Supply Class:
4730

National Item Identification Number:
015012945

Description:
NUT,TUBE COUPLING

Detail:
AN INTERNALLY THREADED NUT WHICH HAS EITHER AN INTERNAL SEAT OR SHOULDER AND/OR IS DESIGNED TO BE USED WITH A FERRULE, TO MATE WITH THE SEAT OF AN EXTERNALLY THREADED TUBE FITTING TO FORM A LEAKPROOF CONNECTION. EXCLUDES NUT (1), TUBE COUPLING, REDUCING; AND NUT (1), UNION.


Manufacturer Information:
MS21921-24W96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
LENGTH TO SHOULDER0.562 INCHES MINIMUM
MATERIALALUMINUM ALLOY 7075 OVERALL
NOMINAL THREAD SIZE1.875 INCHES
NOMINAL TUBE OUTSIDE DIAMETER1.500 INCHES
NUT HEIGHT1.020 INCHES MINIMUM AND 1.040 INCHES MAXIMUM
NUT STYLETUBE COUPLING
SEAT ANGLE45.00 DEGREES NOMINAL
SMALLEST INSIDE DIAMETER1.721 INCHES MINIMUM AND 1.741 INCHES MAXIMUM
SPECIAL FEATURESNHA P/N 17P6J4960-517; T.O. 1C-17A-4-49, FIG. 138, INDEX 73.
WIDTH ACROSS FLATS2.230 INCHES MINIMUM AND 2.270 INCHES MAXIMUM
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNJ
THREAD QUANTITY PER INCH12


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