Part Number: 5960-00-333-8174 (Electron tube-)Part Number: 5960-00-506-4800 (Electron tube-)Part Number: 5960-00-768-0953 (Electron tube-)Part Number: 5960-00-826-4016 (Electron tube-)Part Number: 5960-00-944-3548 (Electron tube-)Part Number: 5960010500264 (Electron tube-)Part Number: 5960010700696 (Electron tube-)