Variable pitch
A pulley with one or more grooved faces or rims of the same diameter. For pulleys encased in a shell or frame, see block, tackle. for items specifically designed for aviation, see pulley(1), groove, aviation.
Classification: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers
NSN 6145-01-192-0738
NSN 6650-00-809-1817
NSN 6135-01-528-6896
NSN 7035-01-227-2546
NSN 6320-01-150-5378
NSN 6320-01-359-3921
NSN 5990-01-412-9020
NSN 5920-01-050-6559
NSN 5925-00-876-1042
NSN 6650-01-081-1537
NSN 5925-00-525-4037
NSN 6620-01-025-1443