National Stock Number
2805-00-621-3920
National Stock Number (NSN) 2805-00-621-3920, or NIIN 006213920, (screw,adjusting,valve tappet) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 2805008913535, 2805003621241, 2805007154084.
There are 8 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 somewhat common among different platforms, belonging to 2 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2005, 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) 33266. [AN EXTERNALLY THREADED SCREW-LIKE DEVICE WITH A HEXAGON, SQUARE, SLOTTED OR ANY OTHER TYPE DRIVE END. THE OTHER END MAY HAVE A SPHERICAL BALL, SOCKET OR OTHER TYPE OF MACHINED SURFACE. IT MAY HAVE A CONCENTRIC HOLE ALONG THE LONGITUDINAL CENTERLINE AND A HOLE PERPENDICULAR TO THE AXIS JOINING THE CONCENTRIC HOLE FOR LUBRICATION. IT IS SPECIFICALLY DESIGNED TO BE USED AS A MEANS FOR ADJUSTING ENGINE POPPET VALVE TAPPET CLEARANCES AND MAY BE FURNISHED WITH A LOCK NUT.]. 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 2805006213920 contains an unknown precious metal.
This NSN is associated to Schedule B 7318159000: threaded fasteners nesoi of iron or steel. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Jul 01, 2025.