Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4824-1404 found under Case Electron Tube by Hardigg Industries Inc. The National Stock Number assigned to this part is 5960016237202, and the Federal Supply Class is 5960 Electron Tubes And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4824-1404.