National Stock Number
2990-01-376-4304
National Stock Number (NSN) 2990-01-376-4304, or NIIN 013764304, (damper,exhaust pipe,diesel engin) was assigned June 2, 1993 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 37121. [A MECHANICAL DEVICE CONSISTING OF A VALVE OR A THROTTLE PLATE INSTALLED IN THE EXHHAUST MANIFOLD OF AN ENGINE AND DESIGNED TO BOOST THE ENGINE BRAKING ACTION BY ADJUSTMENT OF THE EXHAUST PIPE CROSS-S ECTION. MOUNTING ELEMENTS MAY BE INCLUDED.]. 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 2990013764304 contains an unknown precious metal.
This information was last updated on Jun 01, 2025.