5120-00-603-2134 (F71283)
NSN 5120-00-603-2134 (NIIN 00-603-2134) is a spanner wrench in Federal Supply Class 5120, Hand Tools, Nonedged, Nonpowered — a tool on which are located one or more pins, lugs, holes, keyways, or hooks, designed to engage matching holes, slots, or projections on a coupling, nut. Manufacturer part number F71283 (The Boeing Company, CAGE 81205); also referenced as F72767-3 (The Boeing Company).
Key specs: 27 rockwell c minimum and 33 rockwell c maximum hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $427.50 gov standard price; export Schedule B 8204.11.0060.