Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4100502-950 found under Insulation Sleeving by Arma Div. The National Stock Number assigned to this part is 5970006858376, 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 4100502-950.