Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K641204-1 found under Collar Tail Gear by Kaman Aerospace Corporation. The National Stock Number assigned to this part is 1620000064399, 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 K641204-1.