Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4SC1061-1 found under Valve Poppet Hull D by Bombardier Aerospace. The National Stock Number assigned to this part is 2590009732790, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C4SC1061-1.