National Stock Number
5331-01-264-5940
National Stock Number (NSN) 5331-01-264-5940, or NIIN 012645940, (o-ring) was assigned October 5, 1987 in the Federal Logistics Information System (FLIS). NIIN 012645940 was cancelled on March 2, 2002, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5331006180799. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. 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) 47946. [A NONMETALLIC CIRCULAR ITEM WITH AN APERATURE, HAVING A SOLID ROUND CROSS-SECTION. THEY ARE USED PRIMARILY FOR SEALING. FOR ITEMS WITH OTHER THAN ROUND CROSS SECTION, SEE PACKING,PREFORMED. FOR NONCIRCULAR ITEMS WITH A ROUND CROSS-SECTION, SEE SEAL,NONMETALLIC ROUND SECTION AND RUBBER,ROUND SECTION.]. This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5331012645940 does not contain precious metals.
This information was last updated on Aug 01, 2025.