5120-00-277-1250 (1008)
NSN 5120-00-277-1250 (NIIN 00-277-1250) is an open end wrench in Federal Supply Class 5120, Hand Tools, Nonedged, Nonpowered — a nonadjustable wrench having an open end wrenching feature on one or both ends. Manufacturer part number 1008 (Trw IncHand Tools Div Trw, CAGE 65814); also referenced as A-A-1357 (Federal Commercial Item Description); GGG-W-636 (Federal Specifications Promulgated); 6000036 (U S Army Tank Automotive Command); GGG-W-636 TY5 (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 8204.11.0030; ships at 0.04 lb / 0.0423 cu ft. Supersedes 5120-00-600-0036 (1963).