Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3504452-1 found under Plug Protective Dust And Moisture Seal by Honeywell Aerospace. The National Stock Number assigned to this part is 5340013738990, 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 3504452-1.