Used to hold snorkel to divers mask
NSN 6650-01-124-1902
NSN 6610-00-382-0266
NSN 5996-01-245-6121
NSN 5998-00-057-2717
NSN 5950-01-441-2143
NSN 5905-00-371-8265
NSN 6650-01-564-8053
NSN 5975-00-930-1999
NSN 5996-00-772-1956
NSN 5990-01-027-8260
NSN 6645-01-592-2557
NSN 6150-01-409-2858