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 7035-00-631-3782
NSN 6135-00-182-7008
NSN 5910-01-518-8257
NSN 6145-00-952-2872
NSN 5965-01-121-6135
NSN 5975-00-168-4429
NSN 5835-00-348-8549
NSN 5930-01-179-5782
NSN 6145-00-990-9700
NSN 5895-01-519-0243
NSN 5910-00-263-7884
NSN 6145-01-102-1001