>> Search results for: 21616171 NSN Search Results National Stock Number (NSN) Description 4520-01-539-5883, 4520015395883 HEATER,VENTILATION,DUCT TYPE 2320-99-893-3481 , 2320998933481 TRUCK,TANK 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