>> Search results for: 5HY03391111 NSN Search Results National Stock Number (NSN) Description 1660-01-498-5991, 1660014985991 DUCT ASSEMBLY,AIR CONDITIONING-H 4730-01-498-5991 , 4730014985991 CONNECTOR,DUCT 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