National Stock Number
3940-00-189-3557
National Stock Number (NSN) 3940-00-189-3557, or NIIN 001893557, (block,tackle) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 001893557 was cancelled on October 2, 2007, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 06117. [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, AND THE LIKE, BY WHICH IT MAY BE ATTACHED TO AN OBJECT. IT IS USED TO CHANGE DIRECTION OF RUNNING ROPE AND\OR TO GAIN A MECHANICAL ADVANTAGE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3940001893557 does not contain precious metals.
This information was last updated on Jul 01, 2025.