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 5895-01-462-2038
NSN 5975-01-003-7496
NSN 5930-01-182-0174
NSN 5930-01-318-1517
NSN 5920-01-103-4728
NSN 5945-00-905-3136
NSN 5975-00-850-4622
NSN 6650-01-232-2252
NSN 6620-01-368-2723
NSN 4140-01-225-1412
NSN 6135-01-400-2947
NSN 4140-01-424-0678