5505-3000, Type A-14, Diluter Demand Pressure Oxygen Regulator
NEW, nos, Diluter Demand Aircraft Pressure Breathing Oxygen Regulator. Type A-14. Manufactured by Alar products, Inc. P/N 3000. Stock number 5505-3000. Mil Spec MIL-R-6371. NSN: 1660-00-255-8083. It has indefinite shelf life as indicated on attached tag although manufactured in the 50s. Regulator was in a sealed and preserved package until removed to take the photo. Used extensively on most 50s and 60s and even later warbird jets and also several civilian aircraft.