Heat Exchanger / NSN: 1660-01-349-8307 / PN: 793269 Notice ID:FD20302601211 See attachment. Department/Ind.Agency Subtier Office DEPT OF DEFENSE DEFENSE LOGISTICS AGENCY DLA AVIATION AT OKLAHOMA CITY, OK NAICS 336413 - Other Aircraft Parts and Auxiliary Equipment Manufacturing PSC AIRCRAFT AIR CONDITIONING, HEATING, AND PRESSURIZING EQUIPMENT Data sourced from SAM.gov. View Official Posting »