5998-01-518-9418 CIRCUIT CARD ASSEMBLY Index 5320-01-518-9420 PIN-RIVET

National Stock Number:
4730-01-518-9419

Federal Supply Class:
4730

National Item Identification Number:
015189419

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:
AN818-L5D88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
FABRICATION METHODANY ACCEPTABLE
NOMINAL THREAD SIZE0.500 INCHES
NOMINAL TUBE OUTSIDE DIAMETER0.312 INCHES
NUT HEIGHT0.683 INCHES NOMINAL
NUT STYLETUBE COUPLING
LENGTH TO SHOULDER0.579 INCHES NOMINAL
MATERIALALUMINUM ALLOY OVERALL
SEAT ANGLE0.45 DEGREES NOMINAL
SMALLEST INSIDE DIAMETER0.374 INCHES MINIMUM AND 0.377 INCHES MAXIMUM
SPECIAL FEATURESDRILLED FOR LOCKWIRE
WIDTH ACROSS FLATS0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIESUNJF


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