Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TT1-2305 found under Transformer Audio F by Transformer Technicians Inc. The National Stock Number assigned to this part is 5950006454754, 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 TT1-2305.