The Husqvarna Genuine OEM Replacement Flange Nut, model 73971000, is a high-quality metal accessory designed for use with Husqvarna mowers and angle grinders. This black flange nut is specifically compatible with Husqvarna brand equipment and provides a secure fastening solution for your power source. With a durable construction and easy installation, this flange nut is essential for maintaining and repairing your lawn mower or angle grinder.