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 6685-01-275-3973
NSN 6645-00-574-9712
NSN 6150-01-191-7971
NSN 6620-01-441-7896
NSN 6145-01-469-6661
NSN 5930-01-088-8248
NSN 5855-00-869-3635
NSN 6620-00-797-2591
NSN 5999-01-159-7935
NSN 5910-01-069-5237
NSN 5895-01-292-7673
NSN 6620-01-302-3549