NSN 4730-01-105-3911

Part Details | TUBE COUPLING NUT

4730-01-105-3911 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: A81820, A818-20, AN81820, AN818-20, 4730-01-105-3911, 01-105-3911, 4730011053911, 011053911

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
47DEC 20, 198001-105-391103859 ( NUT, TUBE COUPLING )
REFERENCE DRAWINGS & PICTURES

TUBE COUPLING

Cross Reference | NSN 4730-01-105-3911
Part Number Cage Code Manufacturer
A818-2088044AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE
AN818-2088044AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE
Technical Data | NSN 4730-01-105-3911
Characteristic Specifications
THREAD SERIES UNJ
NOMINAL THREAD SIZE1.625 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
NUT STYLE TUBE COUPLING
NUT HEIGHT1.214 INCHES MINIMUM AND 1.234 INCHES MAXIMUM
WIDTH ACROSS FLATS1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM
LENGTH TO SHOULDER1.017 INCHES NOMINAL
SMALLEST INSIDE DIAMETER1.347 INCHES MINIMUM AND 1.350 INCHES MAXIMUM
FABRICATION METHOD
NOMINAL TUBE OUTSIDE DIAMETER1.250 INCHES