Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CAL16-11A found under Block Aux Contact by Abb Control Inc. The National Stock Number assigned to this part is 6110012989272, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CAL16-11A.