4730-00-737-7773 (110647011)
NSN 4730-00-737-7773 (NIIN 00-737-7773) is a plug gas inlet in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings. Manufacturer part number 110647011 (Kaitlin Corp, CAGE 63734); also referenced as P8387 (Honeywell International Inc).
NIIN assigned January 1963; DEMIL A (none required).