National Stock Number
2990-01-237-2854
National Stock Number (NSN) 2990-01-237-2854, or NIIN 012372854, (flange,exhaust pipe) has an unknown assigned date. NIIN 012372854 was cancelled on September 24, 1999, with a cancelled status of "Item is Cancelled - Inactive." 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) 32807. [AN ITEM WITH A THREADED OR UNTHREADED HOLE SPECIFICALLY DESIGNED FOR USE WITH AN EXHAUST PIPE, EXHAUST PIPE CONNECTOR, COMPANION FLANGE OR THE LIKE IN AN ENGINE OR HEATER EXHAUST SYSTEM. THE FACE OF THE FLANGE IS NORMALLY DRILLED FOR CONNECTING BOLTS AND/OR STUDS.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2990012372854 does not contain precious metals.
This information was last updated on Aug 01, 2025.