Underwater life support iaw navsea instruction 10560.2b
A item specifically designed to automatically/manually maintain outlet pressure in a divers helmet/breathing apparatus. It is designed for use with breathing gasses.
NSN 6610-01-170-2905
NSN 6650-01-399-6141
NSN 5950-01-371-6236
NSN 6220-00-255-5652
NSN 2925-01-545-2717
NSN 5855-01-027-8414
NSN 5920-01-232-4839
NSN 5925-01-111-7757
NSN 5950-01-265-6291
NSN 6220-01-045-6265
NSN 6145-00-601-5580
NSN 6610-01-287-9814