Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R0089946-0301 found under Valve Check by Denel Vehicle Systems. The National Stock Number assigned to this part is 4820013178881, 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 R0089946-0301.