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 2925-01-510-2221
NSN 4140-01-273-4891
NSN 5985-01-167-8785
NSN 6620-01-127-0049
NSN 6135-01-429-9029
NSN 6610-00-111-3159
NSN 5998-00-104-7501
NSN 6150-01-270-6071
NSN 5996-01-364-2304
NSN 6150-01-328-8604
NSN 6135-00-593-6831
NSN 6320-00-149-7570