Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RB5548 found under Rotor Pump by Crane Company. The National Stock Number assigned to this part is 1650003306604, and the Federal Supply Class is 1650 Aircraft Hydraulic Vacuum And De-Icing System Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RB5548.