Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F12-0114C02TS 73908REVD 88203955 found under Valve Check by Velan Valve Corporation. The National Stock Number assigned to this part is 4820001379213, 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 F12-0114C02TS 73908REVD 88203955.