The sc suffix of p/n denotes, speed control
No other part numbers with same form, fit, and function found.
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 2925-00-739-3350
NSN 5985-01-055-9698
NSN 6130-00-108-1935
NSN 6645-00-390-7657
NSN 6610-01-353-9326
NSN 5855-01-167-2162
NSN 5945-01-172-7261
NSN 5965-01-567-7984
NSN 5855-00-125-0780
NSN 5945-01-409-2718
NSN 6650-01-620-4706
NSN 5965-01-613-0932