Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ET5500R-5-5-9-BOOM found under by Venturo Manufacturing Inc. The National Stock Number assigned to this part is 3810013045567, 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 ET5500R-5-5-9-BOOM.