National Stock Number
4920-01-102-2937
National Stock Number (NSN) 4931-01-102-2937, or NIIN 011022937, (alignment set,fire control equipment) was assigned October 17, 1980 in the Federal Logistics Information System (FLIS). NIIN 011022937 was cancelled on April 30, 2010, 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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) 48173. [A COLLECTION OF ITEMS NOT ALL HAVING THE SAME NAME WHICH ALIGNS A CUPOLA MOUNTED WEAPON SUCH AS A MACHINE GUN WITH AN OPTICAL FIRE CONTROL DEVICE SUCH AS A PERISCOPE. SOME ITEMS ARE MOUNTED TEMPORARILY ON THE WEAPON WHILE OTHER ITEMS ARE MOUNTED ON THE FIRE CONTROL DEVICE. THE EQUIPMENT MAY BE PROVIDED WITH A CHEST FOR SHIPPING AND STORAGE.]. 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 4931011022937 does not contain precious metals.
This information was last updated on Apr 01, 2025.