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 6650-01-055-8146
NSN 6130-01-286-1079
NSN 5855-00-256-5562
NSN 5905-01-645-8982
NSN 5998-01-156-7634
NSN 5855-00-832-9341
NSN 5835-00-111-3419
NSN 2925-01-144-0352
NSN 5985-01-634-0635
NSN 6145-01-171-2982
NSN 5975-01-053-8308
NSN 6220-01-188-4916