5120-00-449-7042 (24A)
NSN 5120-00-449-7042 (NIIN 00-449-7042) is a wrench extension handle in Federal Supply Class 5120, Hand Tools, Nonedged, Nonpowered — a tubular item with a lockhole which is designed to fit over and engage a locking button on the shank of items such as stub end type box wrenches. Manufacturer part number 24A (Idsc Holdings LLC, CAGE 55719); also referenced as GGG-W-636 (Federal Specifications Promulgated); 8B-7563 (Caterpillar Inc); GGG-W-636 TY19 (General Services Administration).
Key specs: 40 rockwell c minimum and 55 rockwell c maximum hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8204.20.0000. Supersedes 5120-00-972-0346 (1966).