National Stock Number (NSN) 2990-00-385-9404, or NIIN 003859404, (housing,oil pump assembly,nonair) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 98 manufacturer part numbers associated with this NSN. 60 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of May 23, 2018. There have been 4 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7L718P2550, SPE7L517P0425, SPM7L013M1440, SPM7L509M2308, SPM7L509M2308. The total value of the awarded contracts has been US$ 22,480.00.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 8,869. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 09, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 51270. [AN INCLOSURE DESIGNED TO SUPPORT AND PROTECT THE INTERNAL COMPONENTS OF AN OIL PUMP ASSEMBLY, ENGINE USED SPECIFICALLY ON NONAIRCRAFT TYPE ENGINES.]. 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 2990003859404 does not contain precious metals.
This NSN is associated to Schedule B 8413309000: fuel, lubricating or cooling medium pumps for internal combustion ptston engines, except fuel-injection pumps. 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.