National Stock Number (NSN) 2815-01-440-4135, or NIIN 014404135, (engine,diesel) was assigned January 13, 1997 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2815014656449. 
There are 4 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.  
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Mar 03, 2010. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7LX07D7044, SPM7LX07D7044, SPM7LX07D7044. The total value of the awarded contracts has been US$ 46,680.00. 
This NSN is fairly common among different weapons systems, belonging to 16 different platforms. 
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.  Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 26, 2009, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.)  The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2. 
This NSN is assigned to Item Name Code (INC) 03751. [A RECIPROCATING INTERNAL COMBUSTION ENGINE IN WHICH THE POWER NECESSARY TO PRODUCE MOTION OF THE MECHANISM IS OBTAINED BY IGNITING A COMPRESSED FUEL AND AIR MIXTURE WITHIN THE CYLINDER OR CYLINDERS BY EXTREME HEAT RESULTING FROM COMPRESSION. THE ENGINE CONSISTS OF A CYLINDER BLOCK ASSEMBLY COMPLETE WITH CYLINDER HEAD(S) AND OIL PAN(S). IT MAY INCLUDE ATTACHMENTS OR ACCESSORIES, SUCH AS STARTER MOTOR, TRANSMISSION FOR AUXILIARY EQUIPMENT, CLUTCH, OIL FILTER, FLYWHEEL, FLYWHEEL HOUSING OR BATTERY CHARGING GENERATOR. A FUEL TANK IS NOT INCLUDED. FOR A COMPLETE OPERATING POWER UNIT MOUNTED ON A BASE, SEE POWER UNIT (1), DIESEL.]. 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 2815014404135 does not contain precious metals. 
This NSN is associated to Schedule B 8409998000: parts for compression-ignition internal combustion piston engines (diesel), nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333618: other engine equipment manufacturing. 
This information was last updated on Aug 01, 2025.