A metal structure, built as a single unit having a fixed length or composed of two or more units adjustable to various lengths, designed for attaching to a crane or crane-shovel basic unit, the top being fitted with one or more sheaves through which wire ropes are passed to raise or lower a hook, various types of buckets, grapples or other attachments in conjunction with the crane or crane-shovel basic unit when used in excavation or material handling operations.
Classification: Parts of machinery of heading 8426 nesoi
NSN 5855-01-379-9978
NSN 5965-00-243-7782
NSN 6650-01-494-2084
NSN 6610-00-382-0266
NSN 5915-01-421-9779
NSN 5999-01-523-6249
NSN 5920-01-463-0791
NSN 6130-00-481-5993
NSN 5915-01-469-6831
NSN 5996-01-534-9696
NSN 6105-01-083-6953
NSN 6145-01-215-0178