Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 514660 found under Transformer Audio Frequency by Instruments And Flight Research Inc. The National Stock Number assigned to this part is 5950008991431, 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 514660.