Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 161707BR found under by American Telephone And Telegraph Co. The National Stock Number assigned to this part is 5815001372394, and the Federal Supply Class is 5815 Teletype And Facsimile Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 161707BR.