NSN 4730-00-278-5446

Part Details | TUBE COUPLING NUT

4730-00-278-5446 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: AN8058, AN805-8, 156D4, 0593, 4730-00-278-5446, 00-278-5446, 4730002785446, 002785446

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
47JAN 01, 196300-278-544603859 ( NUT, TUBE COUPLING )
REFERENCE DRAWINGS & PICTURES

TUBE COUPLING

Cross Reference | NSN 4730-00-278-5446
Part Number Cage Code Manufacturer
AN805-888044AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE
156D40AHP5CURTISS-WRIGHT CONTROLS, INCDIV SENSORS & CONTROLS
059375547LAWRENCE AERONAUTICAL CORP
Technical Data | NSN 4730-00-278-5446
Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
NUT STYLE TUBE COUPLING
NUT HEIGHT0.688 INCHES NOMINAL
WIDTH ACROSS FLATS0.869 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
LENGTH TO SHOULDER0.531 INCHES NOMINAL
SMALLEST INSIDE DIAMETER0.598 INCHES MINIMUM AND 0.602 INCHES MAXIMUM
FABRICATION METHOD
NOMINAL TUBE OUTSIDE DIAMETER0.500 INCHES