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 5920-01-159-0096
NSN 5998-01-050-8908
NSN 6645-01-508-4012
NSN 5999-01-167-8609
NSN 2925-01-350-8372
NSN 5855-01-033-1375
NSN 5996-00-905-6610
NSN 6220-00-631-1734
NSN 6240-00-594-7138
NSN 6320-01-323-1947
NSN 6145-00-296-0085
NSN 6150-01-622-7745