Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 301494-1128 found under Cap Valve by Diamond Power International Inc. The National Stock Number assigned to this part is 4820011183965, 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 301494-1128.