National Stock Number
6610-00-839-8638
National Stock Number (NSN) 6610-00-839-8638, or NIIN 008398638, (indicator,instrument landing,air) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 6625000201954, 5826003309656, 5840000211431.
There are 7 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 38918. [AN INSTRUMENT WHICH CONTINUOUSLY DISPLAYS THE VISUAL RELATIONSHIP BETWEEN THE FREE SPACE POSITION, OR THE VARIATION ANGLE IN DEGREES, BETWEEN THE LONGITUDINAL AXIS OF AN AIRCRAFT AND AN AIRPORT RUNWAY, DURING THE FINAL APPROACH PHASE OF AN INSTRUMENT LETDOWN PROCEDURE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6610008398638 does not contain precious metals.
This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.
This information was last updated on Jul 01, 2025.