>> Search results for: C5983G1 NSN Search Results National Stock Number (NSN) Description 4130-01-228-1978, 4130012281978 HEAT EXCHANGER,REFR 4420-01-731-1890 , 4420017311890 HEAT EXCHANGER,FLUID TO AIR 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