Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13 RED AND BLACK found under Cable Nipple Electr by Mueller Electric Company Inc. The National Stock Number assigned to this part is 5975002807543, 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 13 RED AND BLACK.