4730-01-023-7773 (B16-5-2IN-IPS150PSI-PP-FLGE)
NSN 4730-01-023-7773 (NIIN 01-023-7773) is a pipe flange in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings — an item solid or split into halves, having a threaded or unthreaded hole for the purpose of connecting or retaining a pipe, tube, or hose fitting. Manufacturer part number B16-5-2IN-IPS150PSI-PP-FLGE (American National Standards, CAGE 80204); also referenced as 20-2, 20-2 ASTMA-105 (Ati Ladish LLC); B16.5 (American National Standards); M18180/2-06A01, M18180/2-06A04 (Military Specifications).
NIIN assigned June 1976; DEMIL A (none required); unit of issue EA (each), $16.67 gov standard price; export Schedule B 7307.91.2000; ships at 4.9 lb / 0.0516 cu ft.