Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MM8319 found under Insulation Sleeving Electrical by Delco Mfg Co Inc. The National Stock Number assigned to this part is 5970008920987, 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 MM8319.