National Stock Number
5331-01-589-9281
National Stock Number (NSN) 5331-01-589-9281, or NIIN 015899281, (o-ring assortment) was assigned November 8, 2010 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 Aug 23, 2018. There have been 12 contracts issued for this part number, with 12 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 8 different suppliers. The last contract numbers awarded were: SPE5E818V9257, SPE5E818V7999, SPE5E817V7450, SPE5E814V5760, SPM5E813M3377. The total value of the awarded contracts has been US$ 11,518.42.
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 Dec 05, 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) 53380. [TWO OR MORE SIZES AND/OR TYPES OF O-RINGS GROUPED TOGETHER IN A SINGLE PACKAGE AND INTENDED FOR INDIVIDUAL REPEATED REPLACEMENT AND/OR GENERAL USE. SEE ALSO O-RING SET. EXCLUDES:GASKET ASSORTMENT.]. 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 5331015899281 does not contain precious metals.
This information was last updated on Aug 01, 2025.