4730-00-222-1863 (4253-142-18)
NSN 4730-00-222-1863 (NIIN 00-222-1863) is a pipe union in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings — a straight pipe fitting designed to join two lengths of pipe or pipe fittings in such a manner that they may be disconnected without disturbing the rest. Manufacturer part number 4253-142-18 (Consolidated Welding And Engineering, CAGE 83395); also referenced as 252H, 252H3-4 (Crane Co); MIL-U-18182 (Military Specifications); 5914-6 (Hamilton Sundstrand Corporation); 980375 (Terex Corp), plus 3 more in the reference table below.
Key specs: 3000 psi maximum single response operating pressure; full characteristics table below. NIIN assigned January 1961; DEMIL A (none required); unit of issue EA (each), $27.56 gov standard price; export Schedule B 7307.19.9030; ships at 1.22 lb / 0.009 cu ft. Supersedes 4730-00-964-3616 (1976), 4730-00-994-8788 (1969).