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 6650-01-594-3888
NSN 6130-01-491-2994
NSN 5999-00-307-8652
NSN 6135-01-306-6549
NSN 6110-00-980-5454
NSN 5996-01-647-4924
NSN 5996-00-583-0607
NSN 5990-00-435-9400
NSN 6220-01-074-9657
NSN 6685-01-053-0888
NSN 5945-01-450-1070
NSN 6685-00-554-3825