National Stock Number (NSN) 5331-00-020-0203, or NIIN 000200203, (o-ring) was assigned October 24, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 28 stock numbers. Five of the National Stock Numbers that it replaces are: 5331015570427, 5330004833653, 5331014648613, 5330000526290, 5330008114901.
There are 91 manufacturer part numbers associated with this NSN. 19 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 51 suppliers. Today, 46 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 28 suppliers are deemed design controlled or valid supply parts. ISO Group has built a very strong supply chain for this NSN. We have direct relationships with 33 sources of supply.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Aug 17, 2010. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM5AC10M0748, SPM5AC10M0361, SPM5AC10M0361. The total value of the awarded contracts has been US$ 9,030.00.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
This national stock number is in high demand. Globally, demand for this NSN has originated from 25 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
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 is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5331000200203 does not contain precious metals.
This NSN is associated to Schedule B 4016930000: gaskets, washers and other seals, of vulcanized rubber other than hard rubber. The Schedule B End Use is listed as industrial rubber products. NAICS classification category 339991: gasket, packing, and sealing device manufacturing.
This information was last updated on Apr 01, 2025.