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 4140-01-556-4113
NSN 5945-01-143-1662
NSN 6650-01-187-0205
NSN 4140-01-152-2672
NSN 4140-01-347-6168
NSN 5950-00-266-9058
NSN 5855-01-503-1495
NSN 5945-00-168-7646
NSN 5998-01-640-7057
NSN 6620-01-341-5164
NSN 6320-01-371-3047
NSN 5950-00-802-1781