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 4140-01-406-3626
NSN 6105-01-021-4016
NSN 5930-00-855-6763
NSN 5950-01-065-0331
NSN 5950-01-394-5352
NSN 5975-01-616-0960
NSN 6620-00-905-6590
NSN 6105-01-258-9231
NSN 5895-01-368-1334
NSN 5950-01-142-8302
NSN 5999-00-958-9261
NSN 5935-00-904-1824