>> Search results for: 5174449 NSN Search Results National Stock Number (NSN) Description 2990-00-416-3957, 2990004163957 Cancelled -> Replaced by 2990005694345 4730-01-037-6577 , 4730010376577 ELBOW,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