National Stock Number (NSN) 4330-01-020-3666, or NIIN 010203666, (head,fluid filter) was assigned April 28, 1976 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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 5 contracts issued for this part number, with 5 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: SPE7L121FA38S, SPE7MC18V6455, SPE7M117P7445, SPE7M115VC907, SPM7M910V2064. The total value of the awarded contracts has been US$ 4,396.02.
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. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 15, 2008, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 22570. [A COMPONENT OF A FLUID FILTER DESIGNED TO CONTAIN THE INLET AND/OR OUTLET PORTS OF THE FILTER. IT ACTS AS A COVER AND ATTACHES TO THE FLUID FILTER BODY OR MOUNTS DIRECTLY TO AN INTEGRAL CAVITY IN AN ENGINE, MANIFOLD, CASING, OR THE LIKE. THE ITEM MAY INCLUDE RELIEF, CHECK, BY-PASS VALVES, AND/OR FLUID FILTER ELEMENT(S). IT MAY HAVE MEANS FOR SUPPORTING THE FILTER ELEMENT(S), AND MEANS FOR MOUNTING THE FILTER. EXCLUDES:HEAD, SEDIMENT STRAINER AND COVER, 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 4330010203666 contains an unknown precious metal.
This NSN is associated to Schedule B 8421990080: parts of machinery and apparatus for filtering or purifying liquids and gases, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333999: all other miscellaneous general purpose machinery manufacturing.
This information was last updated on Aug 01, 2025.