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 5998-01-071-4266
NSN 6620-01-232-8552
NSN 5920-00-954-7270
NSN 6220-00-200-7888
NSN 6150-01-214-8462
NSN 5905-00-242-2737
NSN 5985-00-155-5991
NSN 5996-00-007-3708
NSN 4140-01-492-5999
NSN 6150-00-904-0359
NSN 5895-00-961-0031
NSN 5999-00-850-2022