Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV903 found under Insulating Varnish Electrical by Von Roll Usa Inc. The National Stock Number assigned to this part is 5970001627523, 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 AV903.