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 6320-01-366-5157
NSN 5915-01-410-7822
NSN 5950-00-759-6785
NSN 6150-00-593-5199
NSN 7035-00-897-7567
NSN 5920-00-646-5430
NSN 6610-00-430-5208
NSN 7035-01-057-2402
NSN 2925-00-936-4333
NSN 5985-01-159-6098
NSN 5975-00-677-8908
NSN 6610-01-033-1748