In accordance w/mil-r-83178
A regulator designed to deliver pure breathing oxygen automatically when the user inhales, within a maximum operating altitude of 35,000 feet (10,668 m).
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 6650-01-610-0010
NSN 6650-00-641-6139
NSN 5930-01-572-2208
NSN 2925-00-215-4954
NSN 6110-00-471-3385
NSN 6320-01-361-7467
NSN 5960-01-102-4277
NSN 6105-00-501-7681
NSN 5945-01-547-8996
NSN 5975-00-271-5981
NSN 6105-01-016-0986
NSN 5960-00-979-7303