A helmet part is a component of a helmet that helps protect the head and face. The VISOR, with five letters, is a transparent or tinted shield attached to the front of a helmet to protect the eyes from wind, dust, and debris. The ventail, with seven letters, is a flap of material at the back of a helmet that can be opened or closed to allow air to flow through. The NASAL, with five letters, is a metal bar attached to the front of a helmet to protect the nose. Lastly, the CREST, with five letters, is a decorative piece of material attached to the top of a helmet.