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 5910-01-501-5025
NSN 6105-00-442-1524
NSN 6135-00-505-0679
NSN 6135-01-167-0759
NSN 2925-01-391-9247
NSN 5895-01-524-8996
NSN 5925-01-559-7421
NSN 5998-01-329-9709
NSN 6650-01-313-9752
NSN 5985-00-100-0140
NSN 5998-01-335-7121
NSN 5910-01-470-6768