National Stock Number
4820-01-171-4843
National Stock Number (NSN) 4820-01-171-4843, or NIIN 011714843, (valve,relief,pressure and temperature) has an unknown assigned date. NIIN 011714843 was cancelled on November 2, 1990, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820011713307. 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 4820011714843 does not contain precious metals.
This information was last updated on Aug 01, 2025.