Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KC10570 found under Cock Plug by Hatch And Kirk Inc. The National Stock Number assigned to this part is 4820002887330, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KC10570.