3940-21-861-7638

Tackle Block

3940218617638 218617638

Cancelled - Replaced by NSN 3940-21-626-0153

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. View more Tackle Block