4730-00-288-8457 (ANSI)
NSN 4730-00-288-8457 (NIIN 00-288-8457) is a flange to flang straight adapter in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings — a straight one-piece fitting with flange connections on both ends. Manufacturer part number ANSI; also referenced as ANSI B16.1-75 (American National Standards); 547 (Crane Co); 825 6X4 (Mid-State Sales, Inc.).
Key specs: 125 psi maximum first response operating pressure; 175 psi maximum second response operating pressure; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 7307.91.2000.