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 6135-01-493-8375
NSN 5985-01-102-6896
NSN 5999-01-429-0149
NSN 6685-00-306-5604
NSN 6220-00-032-3340
NSN 6320-01-543-1194
NSN 5998-01-347-1431
NSN 5895-01-449-0912
NSN 5855-01-312-5160
NSN 6320-01-571-4530
NSN 6135-00-276-7625
NSN 5905-00-915-5839