National Stock Number (NSN) 4730-01-199-8175, or NIIN 011998175, (head,sediment strainer) was assigned January 25, 1985 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, with the most recent procurement date of Oct 23, 2018. 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: SPE7M319V0556. The total value of the awarded contracts has been US$ 20,394.00.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
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 Apr 02, 2005, 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 Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 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 4730011998175 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 Aug 01, 2025.