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 6620-01-462-1625
NSN 5960-01-249-7617
NSN 6620-01-600-0479
NSN 5975-01-025-5794
NSN 5990-01-013-8464
NSN 5905-01-079-4607
NSN 2925-01-137-4062
NSN 5965-01-632-4478
NSN 5915-01-179-3202
NSN 6220-01-106-7845
NSN 6150-01-398-8973
NSN 6620-01-552-2889