National Stock Number
4920-00-128-8591
National Stock Number (NSN) 4920-00-128-8591, or NIIN 001288591, (boresighting equipment,weapon) was assigned December 2, 1968 in the Federal Logistics Information System (FLIS). NIIN 001288591 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 32535. [AN ITEM CONSISTING OF A COMBINATION OF VARIOUS DEVICES DESIGNED TO BRING THE BORE AXIS INTO PARALLEL ALIGNMENT WITH THE LINE OF SIGHT OF THE AIMING SYSTEM. IT MAY INCLUDE A TARGET SIGHTING DISK.]. 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 4920001288591 contains an unknown precious metal.
This information was last updated on May 01, 2025.