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 5895-00-280-7528
NSN 6110-01-092-6299
NSN 5935-01-326-8585
NSN 6240-01-401-5340
NSN 6110-01-131-8404
NSN 6145-00-508-8353
NSN 5835-01-480-9215
NSN 6610-01-197-8302
NSN 5935-00-403-0510
NSN 7035-00-585-2113
NSN 5960-01-385-4333
NSN 5975-01-061-9919