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 5975-01-555-8055
NSN 5996-01-633-7979
NSN 2925-01-233-8545
NSN 5996-01-365-1941
NSN 6105-01-199-4265
NSN 6650-01-294-5243
NSN 5920-00-816-5218
NSN 5905-01-517-2324
NSN 6620-01-562-8816
NSN 7035-01-365-9610
NSN 6220-01-486-6749
NSN 5920-01-449-2172