5307-00-737-4341 (6765939)
NSN 5307-00-737-4341 (NIIN 00-737-4341) is a plain 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 6765939 (General Motors Corp, CAGE 24617); also referenced as 7374341 (U S Army Tank Automotive Command).
Key specs: 26 to 32 rockwell c hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required).