Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42440-112 found under Spring Helical Comp by Triumph Gear Systems Inc. The National Stock Number assigned to this part is 5360014547071, 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 42440-112.