Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42249D31 found under Shaft Assembly Feed by Triumph Gear Systems Inc. The National Stock Number assigned to this part is 1620012114844, 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 42249D31.