Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R80-74 found under Rectifier Table Rad by Philips Medical Systems Cleveland. The National Stock Number assigned to this part is 5961014166026, 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 R80-74.