National Stock Number
2990-01-341-3579
National Stock Number (NSN) 2990-01-341-3579, or NIIN 013413579, (catalytic protector switch,emiss) was assigned June 27, 1991 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) 36491. [A DEVICE DESIGNED TO RECEIVE IMPULSES FROM THE ELECTRONIC IGNITION CONTROL UNIT AND ENERGIZE THE THROTTLE POSITION SOLENOID WHEN THE ENGINE SPEED IS ABOVE TWO THOUSAND (2,000) REVOLUTIONS PER MINUTE (RPM). AT HIGH ENGINE SPEED, IT MAINTAINS COMPLETE THROTTLE CLOSING, THEREBY REDUCING CATALYST TEMPERATURE UNDER DECELERATION CONDITIONS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2990013413579 contains an unknown precious metal.
This NSN is associated to Schedule B 8511908000: internal combustion engine parts, nesoi. The Schedule B End Use is listed as engines and engine parts (carburetors, pistons, rings, and valves.
This information was last updated on Aug 01, 2025.