Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2508042-1-4 found under Valve Butterfly by Tri Tec Manufacturing Llc. The National Stock Number assigned to this part is 4810016269880, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2508042-1-4.