Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 617-0541 found under Insulation Sleeving Electrical by Mayer Electric Supply Company Inc. The National Stock Number assigned to this part is 5970015644935, 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 617-0541.