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 7035-01-474-2768
NSN 6150-00-971-2116
NSN 6145-01-300-2983
NSN 5990-01-529-8433
NSN 5905-01-461-3144
NSN 6105-01-534-5360
NSN 4140-01-463-7952
NSN 6105-00-410-8237
NSN 5905-01-571-4586
NSN 4140-00-899-3086
NSN 5975-00-480-0114
NSN 6650-00-299-9681