National Stock Number
4820-00-818-1679
National Stock Number (NSN) 4820-00-818-1679, or NIIN 008181679, (valve,safety relief) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). NIIN 008181679 was cancelled on October 2, 1997, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820005806467. 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) 05488. [A VALVE DESIGNED TO AUTOMATICALLY RELEASE EXCESSIVE PRESSURES. IT IS ACTUATED BY STATIC PRESSURE UPSTREAM OF THE VALVE AND IS USED AS A SAFETY VALVE OR RELIEF VALVE, AND MAY BE SET TO CLOSE AT A PREDETERMINED PRESSURE. IT IS NOT DESIGNED FOR REGULATION OF CONTINUOUSLY FLUCTUATING LOADS. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES:VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820008181679 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.