NSN 4730-00-639-9870

Part Details | TUBE COUPLING NUT

4730-00-639-9870 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.

Alternate Parts: AN81724D, AN817-24D, 4730-00-639-9870, 00-639-9870, 4730006399870, 006399870

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
47JAN 01, 196100-639-987003859 ( NUT, TUBE COUPLING )
REFERENCE DRAWINGS & PICTURES

TUBE COUPLING

Cross Reference | NSN 4730-00-639-9870
Part Number Cage Code Manufacturer
AN817-24D88044AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE
Technical Data | NSN 4730-00-639-9870
Characteristic Specifications
THREAD SERIES UN
NOMINAL THREAD SIZE1.875 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
NUT STYLE TUBE COUPLING
NUT HEIGHT2.312 INCHES NOMINAL
WIDTH ACROSS FLATS2.250 INCHES NOMINAL
LENGTH TO SHOULDER0.678 INCHES NOMINAL
SMALLEST INSIDE DIAMETER1.468 INCHES MINIMUM AND 1.513 INCHES MAXIMUM
SEAT ANGLE33.00 DEGREES NOMINAL
FABRICATION METHOD MACHINED
NOMINAL TUBE OUTSIDE DIAMETER1.500 INCHES
END ITEM IDENTIFICATIONAIRCRAFT APPLICATION