>> Search results for: A21788 NSN Search Results National Stock Number (NSN) Description 3110-00-973-8166, 3110009738166 Cancelled -> Replaced by 3110010499068 5998-99-087-1817 , 5998990871817 CITADEL DIFFERENTIA 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