National Stock Number (NSN) 4730-01-239-3451, or NIIN 012393451, (head,sediment strainer) was assigned August 28, 1986 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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 a year. There have been 6 contracts issued for this part number, with 6 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7M321P3620, SPE7M321V2319, SPE7M321P2427, SPE7M321V2055, SPE7M321V2055. The total value of the awarded contracts has been US$ 858.68.
This NSN is fairly common among different weapons systems, belonging to 11 different platforms.
There has been a small amount of 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 Jul 21, 2016, 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 needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 22571. [A COMPONENT OF A SEDIMENT STRAINER DESIGNED TO CONTAIN THE INLET AND/OR OUTLET PORTS OF THE STRAINER. IT ACTS AS A COVER AND ATTACHES TO THE BOWL, SEDIMENT OR MOUNTS DIRECTLY TO AN INTEGRAL CAVITY IN AN ENGINE, MANIFOLD, CASING, OR THE LIKE. THE ITEM MAY INCLUDE RELIEF, CHECK, AND/OR BY-PASS VALVES, MEANS FOR SUPPORTING THE STRAINER ELEMENT, AND MEANS FOR MOUNTING THE STRAINER. THE ITEM DOES NOT INCLUDE A STRAINER ELEMENT. EXCLUDES:HEAD, FLUID FILTER.]. 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 4730012393451 does not contain precious metals.
This NSN is associated to Schedule B 8421230000: oil or fuel filters for internal combustion engines. The Schedule B End Use is listed as engines and engine parts (carburetors, pistons, rings, and valves.
This information was last updated on Jul 01, 2025.