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 5910-01-094-6752
NSN 6135-01-142-6456
NSN 6650-01-438-7323
NSN 5950-01-644-2683
NSN 6645-00-663-4103
NSN 6150-00-470-4759
NSN 6610-01-148-8865
NSN 4140-01-365-9113
NSN 6135-01-447-0950
NSN 6135-01-242-6484
NSN 5998-01-242-1496
NSN 6320-01-449-1014