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 6220-00-541-8515
NSN 5925-00-475-2648
NSN 5960-00-850-5614
NSN 6650-01-142-1688
NSN 4140-01-056-6730
NSN 6240-00-813-6328
NSN 6610-00-661-1797
NSN 6240-00-999-4421
NSN 5985-01-623-5739
NSN 6610-01-482-4630
NSN 7035-01-380-6538
NSN 6110-01-624-5900