Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D2431-5-16 found under by Chief Of Engineers. The National Stock Number assigned to this part is 3810001611312, and the Federal Supply Class is 3810 Cranes And Crane Shovels. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D2431-5-16.