Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3RT1015-1BB41 found under Contactor Aircraft by Siemens Industrial Automation Inc. The National Stock Number assigned to this part is 4920015569979, 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 3RT1015-1BB41.