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 6650-01-600-2980
NSN 5996-01-374-4798
NSN 5945-01-429-4029
NSN 5965-01-112-8758
NSN 6610-00-132-3387
NSN 5905-00-174-8728
NSN 5935-00-519-0281
NSN 5895-01-513-8065
NSN 6145-01-651-6561
NSN 6105-01-454-0159
NSN 5975-01-128-4380
NSN 6240-00-110-9414