Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AP-KO4253 found under Contactor Magnetic by Gse Holdings Inc. The National Stock Number assigned to this part is 6110016513228, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AP-KO4253.