Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 240.00012 ITEM 50 found under Valve Vent by Mtu Friedrichshafen Gmbh. The National Stock Number assigned to this part is 4820123799817, 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 240.00012 ITEM 50.