>> Search results for: 19400004 NSN Search Results National Stock Number (NSN) Description 5960-00-557-6883, 5960005576883 ELECTRON TUBE 4140-01-631-9557 , 4140016319557 MODIFICATION KIT,AIR CIRCULATING 1 Related Inventory 45D316R1940000-4CCondition NEChloride Color Readily AvailableAdd to RFQ 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