National Stock Number (NSN) 4820-01-408-6971, or NIIN 014086971, (valve,regulating,system pressure) was assigned February 23, 1995 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of May 24, 2018. There have been 5 contracts issued for this part number, with 26 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M118FAJYX, SPE7M118FAETY, SPE7M118FAYN4, SPM7LX12D9006, SPM7LX12D9006. The total value of the awarded contracts has been US$ 3,795.50.
This NSN is somewhat common among different platforms, belonging to 7 different weapons systems.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 30, 2008, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 35896. [A VALUE DESIGNED TO AUTOMATICALLY MAINTAIN WITHIN CLOSE LIMITS A PREDETERMINED PRESSURE WITHIN A CLOSED SYSTEM REGARDLESS OF THE HIGHER FLUCTUATING OR CONSTANT INLET PRESSURE. THE EXCESS PRESSURE IS BY-PASSED TO THE ACCUMULATOR OR RESERVOIR IN LIEU OF PASSING THROUGH THE ENTIRE SYSTEM. IT IS DESIGNED PRIMARILY FOR USE IN REFRIGERATION AND AIR CONDITIONING SYSTEMS. EXCLUDES:VALVE, REGULATING, FLUID PRESSURE AND VALVE, CALIBRATED FLOW.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 4820014086971 does not contain precious metals.
This NSN is associated to Schedule B 8481809015: regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Jun 01, 2025.