>> Search results for: FW257 NSN Search Results National Stock Number (NSN) Description 5960-00-438-8577, 5960004388577 ELECTRON TUBE 5960-00-939-6039 , 5960009396039 ELECTRON TUBE 5310-21-914-3843, 5310219143843 WASHER,FLAT 5960-00-939-6039 , 5960009396039 ELECTRON TUBE 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