National Stock Number
2990-12-347-3144
National Stock Number (NSN) 2990-12-347-3144, or NIIN 123473144, (connector,exhaust pipe) has an unknown assigned date. NIIN 123473144 was cancelled on January 2, 2013, 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) 32806. [A PREFORMED, RIGID, METALLIC ITEM, STRAIGHT OR ANGULAR HAVING ONE OR BOTH ENDS PROCESSED AND/OR TERMINATED. IT IS SPECIFICALLY DESIGNED TO CONNECT AN EXHAUST PIPE TO AN EXHAUST MANIFOLD, SPARK ARRESTER, MUFFLER, CATALYTIC CONVERTER OR TO JOIN PIPING IN AN EXHAUST SYSTEM OF AN ENGINE, HEATER, OR THE LIKE. FOR ITEMS OVER 12 INCHES IN LENGTH AND ITEMS SPECIFICALLY DESIGNED AS A TAILPIPE SEE PIPE, EXHAUST.].
This information was last updated on Aug 20, 2025.