National Stock Number (NSN) 5310-00-286-3514, or NIIN 002863514, (washer,spring tension) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5310000321624.
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 11 suppliers. Today, 10 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 9 contracts issued for this part number, with 15 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A725PA979, SPETA625P0175, SPE4A624PH764, SPE4A623PU363, SPE4A622PU600. The total value of the awarded contracts has been US$ 178,661.40.
This NSN is somewhat common among different platforms, belonging to 8 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 Apr 27, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 15938. [A BENT SPRING METAL WASHER WITH A CENTRALLY LOCATED HOLE. IT IS DESIGNED TO EXERT PRESSURE AXIALLY WHEN ASSEMBLED IN PLACE.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 5310002863514 contains an unknown precious metal.
This NSN is associated to Schedule B 7508900000: other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332999: all other miscellaneous fabricated metal product manufacturing.
This information was last updated on Jul 01, 2025.