Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DM3690 found under Hinge Butt by Vaisala Meteorological Systems Inc. The National Stock Number assigned to this part is 5340013996672, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DM3690.