5120-01-074-3540 (607-7-64)
NSN 5120-01-074-3540 (NIIN 01-074-3540) is a socket head screw key in Federal Supply Class 5120, Hand Tools, Nonedged, Nonpowered — a hand tool designed to impart a rotary movement of force for installing or removing socket screw products. Manufacturer part number 607-7-64 (Allen Mfg Co Sub Of Chicago, CAGE 70276); also referenced as 7/64-607, 74006 (Allen Mfg Co Sub Of Chicago).
Key specs: replaceable wrenching feature; full characteristics table below. NIIN assigned March 1979; DEMIL A (none required); export Schedule B 8204.20.0000.