Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M970 15-1 found under Lampholder by Underwriters Laboratories Inc. The National Stock Number assigned to this part is 6250000755666, and the Federal Supply Class is 6250 Ballasts Lampholders And Starters. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M970 15-1.