Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R63870D14E3818-6 found under Transformer Power by Unifab Industries Inc. The National Stock Number assigned to this part is 5950004336017, 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 R63870D14E3818-6.