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 6645-01-354-7624
NSN 5950-01-546-8060
NSN 5835-01-442-6482
NSN 5950-01-095-5652
NSN 6610-00-402-8922
NSN 5975-01-364-6736
NSN 5998-01-206-5745
NSN 6620-01-333-2513
NSN 5855-01-105-7793
NSN 5915-00-823-1906
NSN 5920-00-362-1376
NSN 6645-00-079-1430