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 6650-01-016-0406
NSN 6620-00-689-4456
NSN 5935-00-401-6603
NSN 6135-00-087-5300
NSN 6135-01-555-4283
NSN 5910-01-342-8347
NSN 6150-01-394-0153
NSN 5990-01-008-9900
NSN 6135-01-469-6429
NSN 6320-01-422-0765
NSN 6130-01-327-0227
NSN 6130-01-406-4617