4730-00-240-1758 (WWP501)
NSN 4730-00-240-1758 (NIIN 00-240-1758) is a pipe elbow in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings — a fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. Manufacturer part number WWP501 (Federal Specifications Promulgated, CAGE 81348); also referenced as B16.4 (American National Standards).
Key specs: 125 psi maximum single response operating pressure; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $7.02 gov standard price. Supersedes 4730-00-202-6287 (1963).