A mechanical device designed to permit a free flow of air into and out of an enclosure, usually used on engine crankcase, vehicular differentials and transmissions, pumps, compressors, and the like. see also cap, vent, fuel storage tank. excludes ventalator (as modified).
Classification: Pressure-reducing valves, pneumatic fluid power type, filter-regulators and filter-regulator-lubricators
NSN 6110-00-578-7243
NSN 6320-01-512-2031
NSN 6240-01-010-6890
NSN 5905-00-791-2140
NSN 5998-00-878-2012
NSN 6105-01-421-6925
NSN 5975-00-917-9514
NSN 6685-01-351-4586
NSN 5945-01-100-3654
NSN 5965-00-351-7460
NSN 6130-01-556-2546
NSN 2925-00-886-4718