National Stock Number
5310-00-772-1257
National Stock Number (NSN) 5310-00-772-1257, or NIIN 007721257, (washer set,spring tension,matche) was assigned January 1, 1962 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. 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.
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.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310007721257 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.