Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 455 1 1 2INIPS BRZ 5TO20PRES found under Valve Regulating Fluid Pressure by Watson Mcdaniel Co. The National Stock Number assigned to this part is 4820013057895, 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 455 1 1 2INIPS BRZ 5TO20PRES.