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 5975-01-447-3768
NSN 5990-01-437-4876
NSN 6220-01-412-6601
NSN 6220-00-443-1693
NSN 6650-01-623-2002
NSN 5998-00-450-7574
NSN 5950-00-005-0390
NSN 6645-01-335-3299
NSN 6645-01-577-5891
NSN 6135-00-203-9645
NSN 5895-00-376-5074
NSN 6620-01-178-4771