Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PCCK600S.70X7036 found under Valve Restrictor Check by Eagle Equipment Corporation. The National Stock Number assigned to this part is 4820006716438, 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 PCCK600S.70X7036.