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 5855-01-079-8716
NSN 6645-01-017-8576
NSN 5999-01-292-2807
NSN 6685-01-428-9618
NSN 5975-01-365-4984
NSN 5915-01-472-2089
NSN 6145-00-820-9982
NSN 5895-00-896-6049
NSN 5835-01-424-4577
NSN 7035-00-908-4933
NSN 5835-01-331-5735
NSN 5990-01-197-6922