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 5910-00-226-0111
NSN 6130-01-049-8097
NSN 5990-01-041-4351
NSN 5999-01-460-6118
NSN 5999-00-828-0916
NSN 5915-01-012-5604
NSN 6110-01-026-0312
NSN 5990-00-459-5752
NSN 5985-01-009-2063
NSN 6685-00-294-0758
NSN 5920-01-389-7348
NSN 5935-01-448-5781