Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 447-13561-01 found under Bootdust And Moisture Seal by Thermo Scientific Portable. The National Stock Number assigned to this part is 5340016943346, 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 447-13561-01.