National Stock Number (NSN) 5310-01-499-3270, or NIIN 014993270, (nut,self-locking,extended washer) was assigned July 18, 2002 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. One of those 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Apr 26, 2019. There have been 21 contracts issued for this part number, with 21 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 7 different suppliers. The last contract numbers awarded were: SPE5EC19P0603, SPE5EC19P0318, SPE5EC19P0318, SPE5EC18P0936, SPE5EC18P0674. The total value of the awarded contracts has been US$ 614,226.42.
This NSN is somewhat common among different platforms, belonging to 6 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. The 24 month forecast from the US Government for this part number has low volatility, with an estimated forecasted value of US$ 173,233. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 22, 2007, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 36744. [A NUT, CIRCULAR IN SHAPE, HAVING WRENCHING FACILITIES SUCH AS FLATS, HOLES, PROTRUSIONS, SLOTS OR SPLINES IN OR ON THE PERIPHERY. IT HAS AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE WRENCHING ELEMENT PERIPHERY AND AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310014993270 does not contain precious metals.
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 Aug 01, 2025.