National Stock Number
1680-00-517-8388
National Stock Number (NSN) 1680-00-517-8388, or NIIN 005178388, (filter,aircraft instruments) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 5 stock numbers: 1680005364929, 1680005161750, 1680002248861, 2945006294689, 1680005544850.
There are 10 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 11 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are 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.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 03, 2013, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 05190. [AN AIR FILTERING DEVICE DESIGNED TO CLEAN AND DRY THE AIR FLOWING TO THE SENSITIVE VACUUM OPERATED FLIGHT INSTRUMENTS IN AN AIRCRAFT.]. 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 1680005178388 contains an unknown precious metal.
This NSN is associated to Schedule B 8803300060: other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.
This information was last updated on Aug 01, 2025.