Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5253-616 found under Semiconductor Device Photo by Raytheon Company. The National Stock Number assigned to this part is 5961005179587, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5253-616.