National Stock Number
5310-01-508-3721
National Stock Number (NSN) 5310-01-508-3721, or NIIN 015083721, (washer set,spring tension,matche) was assigned May 20, 2003 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. 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.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2005, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 31627. [A GROUPING OF TWO OR MORE IDENTICAL OR SIMILAR WASHER (1), SPRING TENSION WHICH HAVE BEEN MATCHED TOGETHER TO MEET A SPECIFIC DEFLECTED HEIGHT TOLERANCE WHEN A PREDETERMINED LOAD COMPRESSION IS AXIALLY APPLIED. INCLUDES ONLY THOSE WASHERS DESIGNED AND TESTED TO ACCOMPLISH A SPECIFICALLY DESIRED FUNCTION.]. 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 5310015083721 does not contain precious metals.
This information was last updated on Jul 01, 2025.