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 4140-00-078-9357
NSN 6240-01-632-6885
NSN 6105-00-660-8882
NSN 2925-00-891-9289
NSN 6105-01-569-4456
NSN 5925-01-583-9128
NSN 5895-00-335-7443
NSN 6620-01-207-0667
NSN 5999-01-387-5985
NSN 6130-01-242-9778
NSN 6320-00-511-7331
NSN 5855-01-380-2708