Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KD8143R1AC3 found under Repair Kit Valve by Barksdale Inc. The National Stock Number assigned to this part is 4820010868257, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KD8143R1AC3.