Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 71502-7 found under Insulator Washer by Espey Mfg And Electronics Corp. The National Stock Number assigned to this part is 5970010041977, and the Federal Supply Class is 5970 Electrical Insulators And Insulating Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 71502-7.