One piece
A mechanical device, consisting of a pulley(s) or sheave(s) encased in a shell or frame which may be provided with a means such as a hook, eye, strap, screw, etc., by which it may be attached to an object. It is used to change direction of a running rope and/or to gain a mechanical advantage.
Classification: Pulley tackle and hoists, other than skip hoists or hoists of a kind used for raising vehicles, not powered by electric motor
NSN 5835-01-235-7821
NSN 5855-01-366-2429
NSN 5905-01-200-5175
NSN 5920-01-296-0577
NSN 5990-00-821-6257
NSN 5985-01-524-3898
NSN 5905-01-593-9970
NSN 5999-01-485-6490
NSN 6620-00-257-2783
NSN 6610-01-199-7371
NSN 5855-01-068-3683
NSN 6685-01-227-6785