Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B171-3545 found under Spring Auxiliary Co by Atb Laurence Scott Ltd. The National Stock Number assigned to this part is 5360001867872, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B171-3545.