Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CSC1666B0 found under Coil Telephone by Ohmega Solenoid Co Inc. The National Stock Number assigned to this part is 5950004887223, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CSC1666B0.