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 4140-01-618-6906
NSN 6220-00-402-6633
NSN 6145-01-089-9879
NSN 5925-01-171-3637
NSN 5910-00-099-9998
NSN 5975-01-605-1246
NSN 7035-00-803-3056
NSN 6620-01-463-1373
NSN 6320-01-292-6635
NSN 6220-01-429-0946
NSN 6240-01-363-4658
NSN 4140-01-109-6834