National Stock Number
2990-01-399-5540
National Stock Number (NSN) 2990-01-399-5540, or NIIN 013995540, (manifold,air exhaust,emission) was assigned November 30, 1994 in the Federal Logistics Information System (FLIS). NIIN 013995540 was cancelled on July 2, 1996, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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) 36218. [A PREFORMED METALLIC ITEM WITH ONE OR MORE INLET PORTS AND TWO OR MORE OUTLET PORTS. IT IS DESIGNED TO DIRECT AIR PRESSURE INTO THE EXHAUST MANIFOLDS TO REDUCE HYDROCARBONS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2990013995540 does not contain precious metals.
This information was last updated on Aug 01, 2025.