National Stock Number
4820-00-031-6255
National Stock Number (NSN) 4820-00-031-6255, or NIIN 000316255, (valve,relief,pressure and temperature) was assigned October 21, 1972 in the Federal Logistics Information System (FLIS). NIIN 000316255 was cancelled on November 22, 2001, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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) 16996. [A VALVE DESIGNED TO RELEASE UNDER EXCESSIVE PRESSURE AND/OR EXCESSIVE TEMPERATURE BY OPENING AT A PREDETERMINED PRESSURE AND/OR TEMPERATURE. THERMOSTATICALLY OPERATED VALVES CLOSE WHEN THE PRESSURE IS RELIEVED OR THE TEMPERATURE IS REDUCED. FUSIBLE PLUG VALVES REQUIRE REPLACEMENT OF THE PLUG. SEE ALSO VALVE, SAFETY RELIEF AND VALVE, REGULATING. TEMPERATURE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820000316255 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.