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 6620-01-497-3744
NSN 5985-01-535-1091
NSN 5935-00-863-8583
NSN 6130-01-574-5384
NSN 5996-01-513-9656
NSN 6645-01-047-3026
NSN 5935-00-170-5361
NSN 5905-01-551-1031
NSN 5998-00-054-4085
NSN 5930-01-572-1406
NSN 7035-01-463-9855
NSN 7035-00-155-9513