Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T255991G1 found under Insulator Bushing by Ngk Locke Inc. The National Stock Number assigned to this part is 5970000884300, 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 T255991G1.