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 5855-01-191-3404
NSN 6685-01-326-6377
NSN 6220-01-119-0742
NSN 6110-00-999-8909
NSN 7035-01-127-0147
NSN 5996-00-115-6458
NSN 6620-00-004-1374
NSN 6645-01-359-7875
NSN 6620-01-234-1799
NSN 5855-01-502-1607
NSN 6130-00-006-4529
NSN 6105-01-443-2980