Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UP 1B-101 found under Coil Radio Frequency by Cooper Electronic Technologies. The National Stock Number assigned to this part is 5950015413278, 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 UP 1B-101.