National Stock Number
5331-99-655-0891
National Stock Number (NSN) 5331-99-655-0891, or NIIN 996550891, (o-ring) has an unknown assigned date. This NSN replaces 1 stock number, 5330011775918.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over a year. There have been 6 contracts issued for this part number, with 6 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7L123P9239, SPE5E820V4770, SPE5E819V5833, SPE5E815V2213, SPM5E813M3032. The total value of the awarded contracts has been US$ 4,276.78.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries.
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 information was last updated on Nov 07, 2025.