Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1620-63161 found under Support Fuselage Bearing by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 1560007657787, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S1620-63161.