Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3590AT found under Grinding Machine Cylindrical by Cincinnati Milacron Inc. The National Stock Number assigned to this part is 3415011146819, and the Federal Supply Class is 3415 Grinding Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3590AT.