Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RA66-105 found under Lining Friction by Port Inc. The National Stock Number assigned to this part is 1630013109049, and the Federal Supply Class is 1630 Aircraft Wheel And Brake Systems. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RA66-105.