Part Number: 00-FKF-1011LH (Nut self locking 316)Part Number: 00-FKF-1011LH316SS (Nut self locking 316)Part Number: 00-FKF-1011LHTHREA (Nut self locking 316)Part Number: 5310-01-389-7992 (Nut self locking 316)Part Number: 66761548 (Nut self locking 316)Part Number: 66761548FLO-SERV (Nut self locking 316)Part Number: 80-FKF-1011LH (Nut self locking 316)Part Number: 80-FKF-1011LHTHREA (Nut self locking 316)