An item designed to fit over the opening of an engine exhaust pipe or muffler to prevent the entrance of rain or foreign matter into the manifold section of a reciprocating engine while not in use. It is automatically opened when the engine is started by pressure exerted from the exhaust system. It is equipped with a hinging action and may or may not have a counter weight. Excludes cap, protective, dust and moisture seal.
Classification: Parts of engines and motors, nesoi
NSN 6240-01-073-4487
NSN 6135-01-096-1452
NSN 6685-01-204-5255
NSN 5895-00-412-8620
NSN 4140-01-065-1884
NSN 6105-01-036-6992
NSN 2925-01-406-9844
NSN 5960-00-106-4168
NSN 5920-01-059-9368
NSN 5895-01-447-4611
NSN 5985-00-472-1155
NSN 6650-00-952-2754