Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SER B327777010101 found under Actuator Hydraulic Pneumatic Rot by Rotork Controls Ltd. The National Stock Number assigned to this part is 4810014786757, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SER B327777010101.