National Stock Number
5310-01-273-6863
National Stock Number (NSN) 5310-01-273-6863, or NIIN 012736863, (washer,seal) was assigned February 29, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5330011575680.
There are 23 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 21 suppliers. Today, 18 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 14 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 5 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A623V543Q, SPE4A623V543Q, SPE5E819V0956, SPE5E817V6805, SPE5E817V0054. The total value of the awarded contracts has been US$ 13,421.76.
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 12, 2013, 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 or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 37917. [A WASHER OF VARIOUS SHAPES HAVING A CENTRALLY LOCATED HOLE. IT IS PRIMARILY USED AS A SEAT FOR A BOLT OR SCREW TO DISTRIBUTE PRESSURE AND HAS A SEALING ELEMENT. IT MAY BE USED IN CONNECTION WITH METALLIC WASHERS TO WHICH IT CAN BE BONDED.]. 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 5310012736863 does not contain precious metals.
This information was last updated on Aug 01, 2025.