Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 25H155 found under Roller Linear Rotary Motion by Warner And Swasey Co. The National Stock Number assigned to this part is 3120000809835, 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 25H155.