5307-01-150-1228 (12337960)
NSN 5307-01-150-1228 (NIIN 01-150-1228) is a shouldered stud in Federal Supply Class 5307, Studs — a headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. Manufacturer part number 12337960 (General Motors LLC, CAGE 7X677); also referenced as 14061661 (General Motors Corp Chevrolet Motor).
Key specs: 33 to 39 rockwell c hardness; full characteristics table below. NIIN assigned March 1983; DEMIL A (none required); unit of issue EA (each), $0.87 gov standard price; export Schedule B 7318.19.0000; ships at 0.022 lb / 0.0001 cu ft.