Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1159RDF503-5 found under Indicator Flap Cont by Gulfstream Aerospace Corp. The National Stock Number assigned to this part is 1560012064953, 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 1159RDF503-5.