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 6150-01-023-1516
NSN 6685-00-373-3436
NSN 6220-01-550-6117
NSN 5975-00-752-7644
NSN 2925-01-327-3069
NSN 5905-00-832-8348
NSN 6220-00-988-5311
NSN 7035-01-616-2267
NSN 4140-01-634-0330
NSN 5996-01-064-6138
NSN 4140-01-422-4431
NSN 6610-01-552-2726