Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 309940-7 found under Boot Dust And Moist by Avibras Industria Aeroespacial S A. The National Stock Number assigned to this part is 5930015231780, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 309940-7.