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 5996-00-007-5969
NSN 6685-00-925-6927
NSN 5945-01-166-7955
NSN 5985-00-833-8063
NSN 5935-00-042-3668
NSN 5855-00-939-4496
NSN 6620-01-171-2505
NSN 6220-00-830-4692
NSN 5950-01-537-0562
NSN 2925-00-679-8131
NSN 6130-00-251-3411
NSN 5855-01-027-1571