Military Standard MS21043-3 Hexagon Self-Locking Nut, Extended Washer

The Military Standard MS21043-3 Hexagon Self-Locking Nut is a reduced hexagon, reduced height nut with self-locking features so it won't back out. Designed to hold bolts firmly in place and to better resist vibrational forces and temperature changes caused by regular flight conditions, the self-locking nut is compatible with a wide range of appropriately sized bolts. The nut is corrosion and heat-resistant, making it the ideal choice for use in airframe assemblies and exterior installations. Nuts are made of steel with a silver plate finish.

The Military Standard MS21043-3 Hexagon Self-Locking Nut from SkyGeek makes a strong addition to your aircraft's hardware. Designed for ease of use, the heat-resistant nut has a traditional hexagon shape and can be installed with basic tools. The compact design has a reduced height, so it won't stand out from the surface or snag. It is made from steel to resist stripping and has a fine thread compatible with most bolts. Nuts are sold individually, but volume pricing is available on qualifying bulk orders.