>> Search results for: EL509 NSN Search Results National Stock Number (NSN) Description 7420-21-907-1871, 7420219071871 CALCULATING MACHINE 5960-12-187-3969 , 5960121873969 ELEKTRONENROEHRE 5961-99-197-8811, 5961991978811 VALVE,ELECTRONIC 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information