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 6240-01-482-1738
NSN 6240-01-252-9374
NSN 2925-01-201-3043
NSN 6645-01-369-2478
NSN 5895-01-315-3346
NSN 6685-01-643-8634
NSN 5965-00-256-8687
NSN 6220-01-451-7083
NSN 4140-01-651-7192
NSN 2925-00-631-0548
NSN 6145-00-409-6844
NSN 6145-01-012-2822