Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 580-61 found under Blower Housing by Industrial Design Laboratories Inc. The National Stock Number assigned to this part is 4230011013612, and the Federal Supply Class is 4230 Decontaminating And Impregnating Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 580-61.