Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SKTTR-7 (EB 19-80-4203 found under Refrigerator Mechanical Food by Silver King Refrigeration Inc. The National Stock Number assigned to this part is 4110015239297, and the Federal Supply Class is 4110 Refrigeration Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SKTTR-7 (EB 19-80-4203.