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 5998-01-352-5854
NSN 5960-00-422-5376
NSN 6320-01-103-6218
NSN 5895-01-219-0132
NSN 5855-00-494-9581
NSN 5920-01-252-3932
NSN 2925-01-472-4144
NSN 6685-00-253-5528
NSN 6220-01-548-5078
NSN 5835-01-045-6371
NSN 5965-01-304-9127
NSN 6110-01-418-8671