3010-00-254-7512 (3F)
NSN 3010-00-254-7512 (NIIN 00-254-7512) is a flexible shaft coupling in Federal Supply Class 3010, Torque Converters And Speed Changers — a device for connecting the ends of two shafts so that rotary motion of one shaft is transmitted to the other shaft. Manufacturer part number 3F (Rexnord Industries LLC, CAGE 21444); also referenced as 3F 1" AND 19/32" BORES W/KEYWAYS (Rexnord Industries LLC).
Key specs: keyway, exposed coupling bolt type, standard grid spring, shrouded coupling bolt type; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $252.41 gov standard price; export Schedule B 8483.60.8000; ships at 5.64 lb / 0.1975 cu ft.