National Stock Number
5331-01-475-6421
National Stock Number (NSN) 5331-01-475-6421, or NIIN 014756421, (gasket,o-ring,aircr) was assigned June 8, 2000 in the Federal Logistics Information System (FLIS). NIIN 014756421 was cancelled on May 2, 2003, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5331001660990. 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, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 17 sources of supply.
This part number has not been procured by the US Government in over 5 years.
There has been very little 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) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5331014756421 does not contain precious metals.
This information was last updated on Aug 01, 2025.