Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 139283-01 found under Retainer Bearing In by Ge Aviation Systems Llc. The National Stock Number assigned to this part is 6610000667734, and the Federal Supply Class is 6610 Flight Instruments. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 139283-01.