A cylindrical metallic body of either solid or hollow construction, containing bearings and/or shafts and the like which provides the rolling elements to guide and support a track-type vehicle along its track.
Classification: Parts, nesoi, of machinery of heading 8429 or 8430
NSN 5935-01-104-6832
NSN 4140-00-824-8821
NSN 6130-00-387-2051
NSN 5985-01-432-0866
NSN 6620-00-351-9949
NSN 6150-01-410-7638
NSN 6610-00-394-1427
NSN 5985-00-081-1885
NSN 5855-01-203-4719
NSN 6130-01-056-0838
NSN 4140-01-095-2719
NSN 5930-01-025-0658