Used to hold snorkel to divers mask
NSN 5990-01-108-0436
NSN 5998-01-410-7412
NSN 4140-00-232-1039
NSN 5855-00-466-2309
NSN 5855-00-361-0167
NSN 6650-00-078-5773
NSN 6645-01-561-8760
NSN 6685-01-385-4180
NSN 6240-01-584-6774
NSN 5905-01-447-2806
NSN 6685-01-459-5047
NSN 5920-01-009-8121