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 6320-00-004-9158
NSN 6135-01-452-8160
NSN 5925-00-688-4332
NSN 6320-00-456-2092
NSN 6645-00-344-7558
NSN 6110-00-406-4767
NSN 5960-01-037-4809
NSN 5910-00-801-6130
NSN 5996-00-747-9770
NSN 6320-01-162-5977
NSN 6320-01-144-3810
NSN 6240-01-157-9128