Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 85710110-601A found under Distribution Box El by Tech Electronic Systems Inc. The National Stock Number assigned to this part is 1680001611922, 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 85710110-601A.