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 5999-01-543-8840
NSN 5910-00-142-3453
NSN 6650-00-221-9425
NSN 2925-00-806-7972
NSN 7035-00-020-2227
NSN 5965-00-946-2021
NSN 6150-01-202-1005
NSN 6130-01-089-5467
NSN 5855-01-250-2421
NSN 5950-01-030-8778
NSN 5935-00-548-5440
NSN 5910-01-633-9963