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 5925-00-290-4451
NSN 5905-00-411-1895
NSN 2925-01-108-3307
NSN 5945-01-246-4797
NSN 6135-00-880-1026
NSN 5965-01-443-3000
NSN 6685-01-545-0829
NSN 6645-00-754-4108
NSN 6135-00-715-4001
NSN 5998-01-269-0306
NSN 5925-01-054-3783
NSN 6620-01-414-4578