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 2925-01-448-2880
NSN 6110-01-399-1176
NSN 6130-00-211-7355
NSN 6620-01-358-0205
NSN 5935-01-421-6045
NSN 2925-01-118-6125
NSN 6320-00-242-3300
NSN 5996-00-875-6818
NSN 6130-00-237-8541
NSN 7035-01-417-6261
NSN 6650-01-061-9101
NSN 5895-00-872-0399