Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T100288 found under Dummy Bearing by Bell Helicopter Textron Inc. The National Stock Number assigned to this part is 5120000313278, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like T100288.