Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A9955REV3 found under Transformer Radio Frequency by Jetronic Industries Inc. The National Stock Number assigned to this part is 5950008405420, 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 A9955REV3.