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 4140-01-552-5198
NSN 6220-01-330-8238
NSN 5905-01-340-0582
NSN 6130-00-383-0537
NSN 6650-01-447-2858
NSN 5996-01-368-9058
NSN 6610-01-422-2376
NSN 6650-01-381-6978
NSN 6610-00-622-6227
NSN 6320-01-481-7322
NSN 2925-01-572-5846
NSN 6220-01-511-3423