NSN 4730-01-421-8421

Part Details | UNION NUT

4730-01-421-8421 An internally threaded nut which has an internal seat or shoulder designed to engage the nut retaining flange of a union tailpiece. The threaded portion is used to engage the thread piece of a union, union elbor or the like. Excludes NUT (1), TUBE COUPLING.

Alternate Parts: 80359593061XX003, 803-5959306-1XX-003, 5959306, 4730-01-421-8421, 01-421-8421, 4730014218421, 014218421

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
47NOV 16, 199501-421-842119964 ( NUT, UNION )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 4730-01-421-8421
Part Number Cage Code Manufacturer
803-5959306-1XX-00353711NAVAL SEA SYSTEMS COMMAND
595930653711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 4730-01-421-8421
Characteristic Specifications
THREAD SERIES UN
NOMINAL THREAD SIZE1.5625 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
NUT STYLE HEXAGON
SHOULDER WIDTH0.120 INCHES NOMINAL
NUT HEIGHT0.780 INCHES NOMINAL
WIDTH ACROSS FLATS1.880 INCHES NOMINAL
SMALLEST INSIDE DIAMETER1.141 INCHES NOMINAL
SHOULDER STEP WIDTH0.120 INCHES NOMINAL
SHOULDER SEAT DIAMETER1.610 INCHES NOMINAL
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN