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 5935-00-546-4701
NSN 5960-00-759-9463
NSN 6220-01-430-0442
NSN 5998-01-171-2937
NSN 5835-00-823-6116
NSN 5920-01-189-9248
NSN 5920-00-544-6564
NSN 6685-01-652-6751
NSN 6645-00-551-8291
NSN 6220-00-244-5040
NSN 5985-01-020-8259
NSN 6150-00-402-8811