Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XCL1215-56K2W found under Sprag by Formsprag Company. The National Stock Number assigned to this part is 1615010884695, and the Federal Supply Class is 1615 Helicopter Rotor Blades Drive Mechanisms And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XCL1215-56K2W.