Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 72-S-5102-1 found under Filter Radio Freque by Photosonics Inc Div Photosoni. The National Stock Number assigned to this part is 5915011413688, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 72-S-5102-1.