National Stock Number
2640-00-052-0851
National Stock Number (NSN) 2640-00-052-0851, or NIIN 000520851, (valve,pneumatic tire) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 2640000520873, 2640009950144.
There are 13 manufacturer part numbers associated with this NSN. 13 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 07414. [A METAL, OR METAL AND RUBBER, TUBULAR STEM CONTAINING A VALVE CORE AND CAP. THE MOUNTING END MAY HAVE A BASE WITH A FITTING DESIGNED FOR MOUNTING ON A PNEUMATIC TIRE, INNER TUBE, OR TIRE RIM, TO PERMIT AND RETAIN INFLATION OR PERMIT DEFLATION. THE MOUNTING END MAY BE INTERNALLY THREADED FOR ADAPTABILITY TO A VALVE SPUD OR MAY BE PROVIDED WITH CURE-ON OR CLAMP IN FEATURES. THE OTHER END IS EXTERNALLY THREADED TO ACCOMMODATE A VALVE CAP, AND INTERNALLY THREADED TO ACCOMMODATE THE VALVE CORE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2640000520851 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.