>> Search results for: 1663710C91 NSN Search Results National Stock Number (NSN) Description 4730-00-139-4253, 4730001394253 ELBOW,HOSE 6220-00-997-8619 , 6220009978619 Cancelled -> Replaced by 6240001054327 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