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 5895-01-189-2919
NSN 5905-00-567-4959
NSN 6130-01-429-2290
NSN 5905-01-346-8985
NSN 5920-01-621-3005
NSN 6220-01-620-8376
NSN 2925-01-317-4543
NSN 5945-01-173-2550
NSN 5985-01-433-5992
NSN 5945-01-521-4254
NSN 5998-01-158-1853
NSN 5960-01-269-9073