3417-01-207-0522 (4J-209)
3417-01-207-0522 is equivalent to manufacture part number 4J-209. It is a chain speed changer and is classified under Federal Supply Class 3417 (3417 - Milling Machines), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 3417 - Milling Machines and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.