Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R4U-26A-3HB6S3-001 found under Chassiselectrical by Chassis Plans Llc. The National Stock Number assigned to this part is 5975016729224, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R4U-26A-3HB6S3-001.