5120-00-806-8760 (406181-1)
NSN 5120-00-806-8760 (NIIN 00-806-8760) is an open end box wrench in Federal Supply Class 5120, Hand Tools, Nonedged, Nonpowered — a nonadjustable wrench having an open end box wrenching feature on one or both ends for installing or removing packing nuts, flare nuts, conduit fittings. Manufacturer part number 406181-1.
NIIN assigned January 1962; DEMIL A (none required).