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 6150-00-589-3531
NSN 6685-01-038-5116
NSN 5950-00-228-0818
NSN 5905-01-136-3509
NSN 5905-01-606-3656
NSN 5998-01-423-7572
NSN 5915-01-158-6864
NSN 5990-00-537-6118
NSN 4140-01-235-7082
NSN 6150-01-281-7279
NSN 5925-01-584-2545
NSN 7035-00-763-6180