Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 66-440 found under Harness Dog Leading by Ray Allen Manufacturingllc. The National Stock Number assigned to this part is 3770002406620, and the Federal Supply Class is 3770 Saddlery Harness Whips And Related Animal Furnishings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 66-440.