Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F85-87 P.3 ITEM-D7 found under Drift Valve Stem by Ulstein Bergen A S. The National Stock Number assigned to this part is 4820013051869, 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 F85-87 P.3 ITEM-D7.