>> Search results for: NFRA4X NSN Search Results National Stock Number (NSN) Description 4720-01-431-9628, 4720014319628 HOSE ASSEMBLY,AIR DUCT 4720-01-675-5375 , 4720016755375 HOSE ASSEMBLY,AIR DUCT 4720-01-675-8525, 4720016758525 HOSE ASSEMBLY,AIR 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