Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 151BX5X1-4SS found under Valve Angle by Republic Mfg Co. The National Stock Number assigned to this part is 4820001377869, 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 151BX5X1-4SS.