National Stock Number
6665-00-443-1031
National Stock Number (NSN) 6665-00-443-1031, or NIIN 004431031, (light,instrument) was assigned April 9, 1969 in the Federal Logistics Information System (FLIS). NIIN 004431031 was cancelled on June 2, 2007, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 6665004518260. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are 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) 21517. [A COMPACT, SEALED, ELECTRICAL COMPONENT, SPECIFICALLY DESIGNED TO SUPPLY DIRECT ILLUMINATION FOR RETICLES IN OPTICAL INSTRUMENTS, DIALS AND/OR SCALES AND LEVEL VIALS ON MECHANICAL DEVICES. MAY INCLUDE BATTERY SOURCE, FILTERS, CABLES AND CONTROLS FOR INTENSITY OF ILLUMINATION. PROVIDES METHOD OF SECURING. EXCLUDES:LIGHT, PANEL. DO NOT USE IF A MORE SPECIFIC NAME EXISTS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6665004431031 does not contain precious metals.
This information was last updated on Aug 01, 2025.