National Stock Number
2840-00-856-6411
National Stock Number (NSN) 2840-00-856-6411, or NIIN 008566411, (gearbox,accessory drive,turbine) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 2840009921532, 2840004747255.
There are 3 manufacturer part numbers associated with this NSN. 3 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 61690. [A COMPLETE ASSEMBLY OF GEARS, BEARINGS, SHAFTS, SEALS, AND NECESSARY MISCELLANEOUS PARTS, ENCASED IN A HOUSING, DESIGNED FOR DRIVING AND/OR ATTACHING VARIOUS AIRCRAFT OR ENGINE ACCESSORIES AND COMPONENTS.]. This item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 2840008566411 does not contain precious metals.
This NSN is associated to Schedule B 8411997050: parts of gas turbine aircraft engines, other than for use in civil aircraft. The Schedule B End Use is listed as engines and turbines for military aircraft. NAICS classification category 336412: aircraft engine and engine parts manufacturing.
This information was last updated on Aug 01, 2025.