>> Search results for: 27A4031000 NSN Search Results National Stock Number (NSN) Description 1660-01-021-3995, 1660010213995 DUCT ASSEMBLY,AIR CONDITIONING-H 1660-01-521-4030 , 1660015214030 DUCT ASSEMBLY,AIR CONDITIONING-H 1 Related Inventory IT4570-0101660010213995Condition FNDUCT ASSY Readily AvailableAdd to RFQ 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