Sole source required by statute
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 6130-00-118-5614
NSN 6650-00-575-7487
NSN 5920-01-381-1306
NSN 6145-01-438-7322
NSN 6150-01-450-6944
NSN 6650-01-012-3290
NSN 5910-01-463-2429
NSN 7035-01-017-2702
NSN 6620-01-443-1214
NSN 5998-00-723-6360
NSN 6110-00-683-5461
NSN 2925-01-144-7106