5120-00-277-1249 (1707)
NSN 5120-00-277-1249 (NIIN 00-277-1249) 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 1707 (Bonney Forge Corp, CAGE 07971); also referenced as A-A-1357 (Federal Commercial Item Description); GGG-W-636 (Federal Specifications Promulgated); 6013224A (U S Army Tank Automotive Command); 5400A31 (Mcmaster-Carr Supply Co), plus 3 more in the reference table below.
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 1.4 lb / 0.0106 cu ft. Supersedes 5120-00-448-2411 (1960), 5120-00-357-8581 (1963).