MIL-PRF-25961 Valve, Fill-Buildup-Vent, Liquid Oxygen Converter, Cru-50/AThis specification covers one type of liquid oxygen converter fill-buildup-vent valve for use in 70 and 300 pounds per square inch gage \(psig\) liquid oxygen \(LOX\) systems in aircraft. The valve is designated CRU-50/A.