An item designed to automatically relieve vacuum, by the intake of air, when the internal pressure falls below atmospheric pressure. See also valve, vacuum regulating.
Classification: Other taps, cocks, valves, etc., nesoi
NSN 5920-01-474-2227
NSN 6650-00-854-0265
NSN 6685-01-030-6895
NSN 5990-01-432-4249
NSN 5935-00-871-5066
NSN 5905-00-153-2802
NSN 6650-00-400-4977
NSN 6135-01-010-0891
NSN 6110-00-534-1441
NSN 6620-01-650-5226
NSN 5960-00-553-7338
NSN 5915-00-270-3764