Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T235A143-6 found under Transformer Audio F by Instrument Systems Corp. The National Stock Number assigned to this part is 5950005255525, 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 T235A143-6.