70 microns
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 7035-01-383-6549
NSN 5835-01-119-8561
NSN 6135-00-269-5843
NSN 6320-01-504-3948
NSN 2925-01-303-5169
NSN 5990-01-351-4621
NSN 6240-00-785-2113
NSN 6320-01-294-7161
NSN 6620-00-189-0967
NSN 5915-01-014-4837
NSN 6220-01-115-3027
NSN 5930-01-305-9666