Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C43301B found under Coil Radio Frequency by Airtherm Mfg Co. The National Stock Number assigned to this part is 5950003243180, 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 C43301B.