A noise control/filtering device of various sizes, shapes, designs, materials (metallic/non-metallic) and varied mounting configurations used to diffuse air blasts, lowers air velocity, reduce noise, filtration of airborne moisture and/or dust contamination, pressure equalization, speed control for air operated devices. For vehicular application see muffler, (as modified).
Classification: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers
NSN 6135-00-170-8819
NSN 5935-00-724-8731
NSN 6620-01-595-7459
NSN 5935-00-296-8999
NSN 6240-00-880-1893
NSN 6110-00-090-3690
NSN 5925-01-028-2492
NSN 4140-01-335-3451
NSN 6620-01-612-9030
NSN 6645-00-595-5431
NSN 5985-01-488-6523
NSN 6685-01-448-8632