National Stock Number
1660-01-319-4991
National Stock Number (NSN) 1660-01-319-4991, or NIIN 013194991, (duct assembly,air conditioning-heating,aircraft) was assigned May 9, 1990 in the Federal Logistics Information System (FLIS). NIIN 013194991 was cancelled on November 2, 1997, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1660014183659. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 32351. [A HOLLOW BODY USED TO TRANSPORT AIR TO VARIOUS PARTS OF THE AIRCRAFT FOR THE PURPOSE OF HEATING, COOLING, PRESSURIZING, DE-ICING, AND THE LIKE. IT MAY INCLUDE FLANGE(S), BRACKET(S), AND THE LIKE FOR MOUNTING PURPOSES. EXCLUDES:PIPES USED IN AIRCRAFT EXHAUST SYSTEMS AND PIPES USED IN NON-AIRCRAFT APPLICATIONS. EXCLUDES:PIPE, EXHAUST AND PIPE, AIR CONDITIONING-HEATING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660013194991 does not contain precious metals.
This information was last updated on Jul 01, 2025.