National Stock Number
5331-00-297-6287
National Stock Number (NSN) 5331-00-297-6287, or NIIN 002976287, (o-ring) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 002976287 was cancelled on April 2, 2010, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5331001716649. 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 unique to one weapons system.
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 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 5331002976287 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.