National Stock Number
5310-01-309-6504
National Stock Number (NSN) 5310-01-309-6504, or NIIN 013096504, (washer,seal) was assigned October 20, 1989 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A625PS659, SPE4A625V1692. The total value of the awarded contracts has been US$ 924.32.
There has been very little 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 Mar 18, 2014, 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 Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310013096504 does not contain precious metals.
This information was last updated on Jul 01, 2025.