Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3S2781F122B1A1 found under Panel Protective by Communications Instruments Inc. The National Stock Number assigned to this part is 6110008853959, 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 3S2781F122B1A1.