National Stock Number
4820-01-067-3671
National Stock Number (NSN) 4820-01-067-3671, or NIIN 010673671, (valve,stop and stop check) was assigned October 28, 1978 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 14, 2019, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 61314. [A COMBINATION OF TWO VALVES, ONE A STOP VALVE, THE OTHER A STOP CHECK VALVE, EITHER IN THE SAME BODY, OR IN SEPARATE BODIES BOLTED TOGETHER, USED TO CONTROL THE ADMISSION OF FEED WATER TO A BOILER, TO PREVENT THE RETURN OF WATER OR STEAM FROM THE BOILER, AND TO PROVIDE A MEANS OF SHUTTING OFF THE FEED LINE BETWEEN THE STOP CHECK VALVE AND THE STEAM DRUM OR ECONOMIZER.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820010673671 does not contain precious metals.
This information was last updated on Jul 01, 2025.