Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A138-6-B found under Valve Angle by Republic Mfg Co. The National Stock Number assigned to this part is 4810011773777, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A138-6-B.