Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B2 17315 45 found under Shaft Assembly Flexible by Curtis Straus Llc. The National Stock Number assigned to this part is 1680003464112, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B2 17315 45.