Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 204-031-837-9 found under Hinge Upper Cabin Lh by Ruag Aerospase Services Gmbh. The National Stock Number assigned to this part is 5342002393712, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 204-031-837-9.