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 6610-01-189-3001
NSN 5945-01-053-1643
NSN 6150-01-125-9355
NSN 5985-01-634-0635
NSN 6145-01-262-4781
NSN 6135-01-483-5269
NSN 6145-00-081-3993
NSN 5915-01-043-6309
NSN 6220-00-205-2040
NSN 5990-01-070-4627
NSN 2925-01-342-1712
NSN 6145-01-540-2738