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 5935-00-498-5839
NSN 6620-01-632-0394
NSN 5960-00-372-4876
NSN 5950-01-556-7010
NSN 5895-01-634-0630
NSN 5835-00-187-1481
NSN 5910-01-317-5553
NSN 5996-01-244-0222
NSN 2925-00-898-9135
NSN 5998-01-330-5099
NSN 5935-01-040-8374
NSN 6110-00-114-0868