National Stock Number
4520-01-085-1373
National Stock Number (NSN) 4520-01-085-1373, or NIIN 010851373, (filter,air inlet) was assigned October 31, 1979 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One 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, only one supplier is 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 a year. There have been 9 contracts issued for this part number, with 9 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE8E824V0991, SPE8E817V1190, SPE8E816V0994, SPM8E812V0235, SPM8E812V0177. The total value of the awarded contracts has been US$ 28,949.49.
This NSN is somewhat common among different platforms, belonging to 2 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 21, 2011, 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) 77777. 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 4520010851373 does not contain precious metals.
This NSN is associated to Schedule B 5602100000: felt, whether or not impregnated, coated, covered or laminated: needleloom felt and stitch-bonded fiber fabrics. The Schedule B End Use is listed as finished textile supplies. NAICS classification category 313230: nonwoven fabric mills.
This information was last updated on May 01, 2025.