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 5985-01-239-4040
NSN 5920-00-969-9279
NSN 5925-00-226-1155
NSN 6650-01-253-1134
NSN 6150-00-617-1989
NSN 6685-01-330-7330
NSN 5930-00-358-6171
NSN 2925-00-149-0760
NSN 5950-01-329-9517
NSN 5999-01-120-0774
NSN 2925-00-774-8247
NSN 5965-00-226-0209