Previous Next Previous Next Breadcrumb Attachments Manitowoc National Crane hook block Manitowoc National Crane hook block Crane manufacturer National Crane Unit number 942447 Price $5,620.00 Learn the Top 10 reasons to get the Runnion Advantage. View Flyer Learn More Have a Question? Use the link below to send us a question and one of our service representatives will respond as soon as possible. If it's not in stock, we can locate it quickly! Ask a Question