Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HSM 411.2OMDD ITEM4 found under Wheel Drive Shredde by Whitaker Brothers Business Machines. The National Stock Number assigned to this part is 7490016291618, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HSM 411.2OMDD ITEM4.