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 4140-01-604-1707
NSN 5925-00-945-5463
NSN 6150-00-547-4698
NSN 5905-00-101-8643
NSN 5990-01-407-6615
NSN 5990-01-645-2592
NSN 6620-01-029-3705
NSN 5920-01-379-7475
NSN 2925-00-914-7627
NSN 5835-01-464-7038
NSN 6130-01-184-3987
NSN 6645-00-654-8804