5307-00-772-4983 (71688-2)
NSN 5307-00-772-4983 (NIIN 00-772-4983) is a stepped stud in Federal Supply Class 5307, Studs — a headless fastener not exceeding 12 inches (304.8 mm) in length. Manufacturer part number 71688-2 (Triumph Engine Control Systems LLC, CAGE 11599).
Key specs: 26 to 34 rockwell c hardness; full characteristics table below. NIIN assigned January 1985; DEMIL A (none required); unit of issue EA (each), $1,256.90 gov standard price.