>> Search results for: 578R991H05 NSN Search Results National Stock Number (NSN) Description 6240-00-777-1917, 6240007771917 LAMP AND BASE ASSEMBLY 6240-01-143-7702 , 6240011437702 Cancelled -> Replaced by 6240007771917 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