National Stock Number (NSN) 4820-00-945-4385, or NIIN 009454385, (valve,regulating,fluid pressure) was assigned March 11, 1966 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 1650005401658.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 28, 2019. There have been 10 contracts issued for this part number, with 10 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7MC19P3002, SPE7MC19V4277, SPE7M819V1126, SPE7MC17V6920, SPE7MC16M1123. The total value of the awarded contracts has been US$ 40,560.36.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
There has been a small amount of 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 Dec 23, 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. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 27565. [A VALVE DESIGNED TO AUTOMATICALLY MAINTAIN WITHIN CLOSE LIMITS A PREDETERMINED OUTLET PRESSURE WHICH MAY BE ADJUSTABLE WITHIN A SPECIFIED RANGE REGARDLESS OF THE HIGHER FLUCTUATING OR CONSTANT INLET PRESSURE. IT IS DESIGNED FOR USE WITH COMPRESSED GAS(ES) AND VARIOUS LIQUIDS AND MAY INCLUDE GAUGES. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES:REGULATOR, PRESSURE, MEDICAL GAS ADMINISTRATION APPARATUS; REGULATOR, OXYGEN, BAROMETRIC CONTINUOUS FLOW; REGULATOR, OXYGEN DEMAND; REGULATOR, OXYGEN DILUTER DEMAND; AND VALVE(1), FLUID PRESSURE REGULATING, AIRCRAFT.]. This item does not have a nuclear hardened feature or any other critical feature 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 4820009454385 contains an unknown precious metal.
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 Jul 01, 2025.