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 6110-01-210-5607
NSN 5996-00-966-4688
NSN 5960-00-400-2222
NSN 5990-00-078-8529
NSN 6135-01-247-5660
NSN 6135-00-255-1340
NSN 5990-00-013-1042
NSN 5920-01-584-5579
NSN 2925-01-556-0333
NSN 5855-01-136-1916
NSN 5960-00-597-2680
NSN 6620-01-032-3937