4730-00-448-8650 (FIG1164)
NSN 4730-00-448-8650 (NIIN 00-448-8650) is a pipe tee in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, And Railing Fittings — a fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. Manufacturer part number FIG1164; also referenced as FIG1164 3-4 (ITT Grinnell Corp).
Key specs: 300 psi maximum single response operating pressure; full characteristics table below. NIIN assigned May 1974; DEMIL A (none required).