National Stock Number
1620-01-020-4973
National Stock Number (NSN) 1620-01-020-4973, or NIIN 010204973, (cylinder and piston assembly,landing gear) was assigned April 30, 1976 in the Federal Logistics Information System (FLIS). NIIN 010204973 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 2 stock numbers: 1620001791084, 1620005006795.
There are 6 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 one supplier. Today, one supplier is listed as an Active supplier 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) 61579. [THE MAIN SHOCK ABSORPTION PORTION OF AN AIRCRAFT LANDING GEAR, CONSISTING OF THE MAIN CYLINDER AND PISTON AND OTHER ASSOCIATED PARTS. MAY BE WITH OR WITHOUT AXLE(S). EXCLUDES LANDING GEAR, FIXED AND LANDING GEAR, RETRACTABLE.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1620010204973 does not contain precious metals.
This information was last updated on Aug 01, 2025.