Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17720233A 25MM AH IT18 found under Roller Linear Rotary Motion by Halla Hydro Ab. The National Stock Number assigned to this part is 3120014300114, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17720233A 25MM AH IT18.