Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 215 01371 3 found under Valve Diaphragm Sto by Triumph Aerostructures Llc. The National Stock Number assigned to this part is 4820004420097, 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 215 01371 3.