Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1R4269-1 found under Tank Oil Hydraulic System by Drs C3 And Aviation Company. The National Stock Number assigned to this part is 2590016105681, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1R4269-1.