National Stock Number (NSN) 4820-01-104-5169, or NIIN 011045169, (valve,bleeder,hydraulic system) was assigned December 5, 1980 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 9 manufacturer part numbers associated with this NSN. 6 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 Oct 25, 2019. There have been 18 contracts issued for this part number, with 22 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7M220P0174, SPE7M220P0174, SPE7M218P2805, SPE7M218P2805, SPE7MC18V3883. The total value of the awarded contracts has been US$ 197,743.87.
This NSN is fairly common among different weapons systems, belonging to 21 different platforms.
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 Jul 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 37648. [A METALLIC, THREADED, SCREW-SHAPED ITEM USED IN HYDRAULIC BRAKE CYLINDERS, HYDRAULIC POWER UNITS, MISSILE LAUNCHING HYDRAULIC SYSTEMS, AND THE LIKE, FOR THE PURPOSE OF PROVIDING A MEANS OF RELEASING AIR FORM AND/OR FLUSHING A HYDRAULIC SYSTEM. IT MAY BE FURNISHED WITH OR WITHOUT A DUST CAP. EXCLUDES:SPRING LOADED OR AUTOMATIC TYPE AIR PRESSURE RELIEF VALVES, AND BOLT, FLUID PASSAGE.]. 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 4820011045169 does not contain precious metals.
This NSN is associated to Schedule B 8481809050: other taps, cocks, valves, etc., nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Aug 01, 2025.