Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FRS1 284 found under Insulator Disk by Lucas Aerospace Power Equipment. The National Stock Number assigned to this part is 5970005346190, 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 FRS1 284.