Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QM30023 found under Bootdust And Moisture Seal by Vaisala Meteorological Systems Inc. The National Stock Number assigned to this part is 5340016922909, 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 QM30023.