National Stock Number
4931-01-237-4438
National Stock Number (NSN) 4931-01-237-4438, or NIIN 012374438, (collimator set,alignment) was assigned July 31, 1986 in the Federal Logistics Information System (FLIS). NIIN 012374438 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 are 3 manufacturer part numbers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 07, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 62349. [A FIXED NUMBER OF COMPONENTS AND/OR ITEMS, NOT ALL HAVING THE SAME BASIC NAME, WHICH ARE SPECIFICALLY DESIGNED FOR CHECKING THE ALIGNMENT OF A BORESIGHT-TYPE FIXTURE.]. 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 4931012374438 does not contain precious metals.
This information was last updated on Aug 01, 2025.