This product is a tapered roller bearing.  It has an NSN of 3110-00-100-0584 and is specifically a bearing race 4T-42587. This is a new item suitable for heavy equipment applications. Please be sure this bearing fits your application before buying. I have one other one listed by tampkin same bearing same NSN number. Just different box, different manufacturer. Lots of other bearings. Also listing along with lots of hardware, military surplus, new and used car parts, new tools, finish toys, HO train items, gold and silver coins. Finish stamps, vintage electronics, automobile and vintage electronic manuals over 2,200 items listed in my store. Most on sale the month of March for the new year. As always, any reasonable offer would be considered and combined shipping on multi-item purchases. Most of my items are sold as shown as listed as it all sales are final been selling on eBay 25 plus years. Consistently run at 99 to 100% feedback. So by with confidence, one of eBay's trusted sellers.