Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74A450974-2001 found under Spring Helical Torsion by Nassau Tool Works Inc. The National Stock Number assigned to this part is 5360011080377, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74A450974-2001.