>> Search results for: CM12143 NSN Search Results National Stock Number (NSN) Description 5905-00-502-4055, 5905005024055 Cancelled -> Replaced by 5905005391006 4240-01-612-0702 , 4240016120702 HELMET MOUNTED TRAI 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