National Stock Number
4820-01-109-5581
National Stock Number (NSN) 4820-01-109-5581, or NIIN 011095581, (cap,by-pass valve) was assigned March 17, 1981 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to 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) 77777. 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 4820011095581 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.