4730-01-012-3417 (MIL-DTL-1183/8)
NSN 4730-01-012-3417 (NIIN 01-012-3417) is a pipe reducer in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings — a straight pipe fitting having a different size connection on each end. Manufacturer part number MIL-DTL-1183/8 (Military Specifications, CAGE 81349); also referenced as FIG 5157-249 (Flagg Stanley G & Co IncDba Flagg); M1183/8-49A, MIL-F-1183 (Military Specifications).
Key specs: 200 psi maximum first response operating pressure; 400 psi maximum second response operating pressure; full characteristics table below. NIIN assigned November 1975; DEMIL A (none required); unit of issue EA (each), $39.34 gov standard price; export Schedule B 7412.20.0000; ships at 0.545 lb / 0.0224 cu ft. Supersedes 4730-01-109-7619 (1985).