Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3664303-11 found under Lap Assy Regulator by United Aeronautical Corporation. The National Stock Number assigned to this part is 1680006756452, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3664303-11.