Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9-4054-80-170 found under Valve Reed Air Elim by New Progress Inc. The National Stock Number assigned to this part is 4930000730493, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9-4054-80-170.