National Stock Number
5310-01-602-5990
National Stock Number (NSN) 5310-01-602-5990, or NIIN 016025990, (washer,spring) was assigned February 1, 2012 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. 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 May 24, 2018. There have been 6 contracts issued for this part number, with 11 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A518F712N, SPE4A518F712N, SPE4A518F712N, SPE4A518F712N, SPE4A518F678H. The total value of the awarded contracts has been US$ 16,227.74.
This NSN is unique to one weapons system.
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 May 07, 2015, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310016025990 does not contain precious metals.
This information was last updated on Aug 01, 2025.