Cap held in place by wing-nut
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 5990-01-504-9265
NSN 5985-00-734-7479
NSN 5935-00-228-9882
NSN 6610-01-539-8213
NSN 5985-01-037-9039
NSN 5915-01-294-5903
NSN 5935-01-393-6867
NSN 5985-01-169-2145
NSN 5999-01-042-3649
NSN 6620-01-140-0489
NSN 5910-00-034-5058
NSN 5835-01-381-1824