National Stock Number
1620-01-390-7850
National Stock Number (NSN) 1620-01-390-7850, or NIIN 013907850, (steering unit,aircraft nose whee) was assigned May 26, 1994 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated 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, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 21, 2017, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) 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) 50664. [AN UNITIZED ASSEMBLY WHICH CONTROLS NOSEWHEEL DIRECTION DURING GROUND OPERATION. TORSIONAL FORCE IS PRODUCED FROM EXTERNALLY SUPPLIED HIGH PRESSURE HYDRAULIC FLUID. COMPONENT PARTS MAY INCLUDE ACTUATORS, GEAR SETS, PISTONS, ROTORS, SENSORS, SERVOVALVE ASSEMBLIES, SHAFTS, SOLENOID VALVES, AND THE LIKE. THE ASSEMBLY MAY ALSO ACCOMPLISH A SHIMMY DAMPING FUNCTION.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 1620013907850 does not contain precious metals.
This NSN is associated to Schedule B 8803200060: undercarriages and parts thereof, for use in military aircraft. The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.
This information was last updated on Jul 01, 2025.