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 6620-00-233-6839
NSN 5990-01-242-9653
NSN 6240-01-034-0436
NSN 5996-00-278-5193
NSN 2925-01-422-1542
NSN 6685-01-207-8176
NSN 5855-01-098-9038
NSN 5905-01-283-1272
NSN 6110-01-173-5310
NSN 7035-01-411-6062
NSN 6130-01-602-4034
NSN 7035-01-502-6764