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 5998-01-183-8557
NSN 5835-00-074-3700
NSN 5920-01-170-3464
NSN 5945-01-112-0327
NSN 6240-01-197-3888
NSN 6145-00-993-3377
NSN 5965-00-636-4926
NSN 5925-00-290-4451
NSN 5960-01-485-2467
NSN 6105-00-773-3295
NSN 6645-01-212-9474
NSN 5996-01-367-0778