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 6130-01-117-4053
NSN 5975-00-810-8782
NSN 5915-00-237-0967
NSN 5835-01-486-4191
NSN 2925-00-323-7394
NSN 5999-01-342-9913
NSN 5910-01-181-8890
NSN 6135-01-273-1253
NSN 5855-00-631-4565
NSN 6135-01-365-2707
NSN 6130-00-698-9978
NSN 6220-01-103-9740