Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74A420616-2003 found under Valve Uplock Me by Nassau Tool Works Inc. The National Stock Number assigned to this part is 1620011403384, and the Federal Supply Class is 1620 Aircraft Landing Gear Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74A420616-2003.