MS20426DD6-7 Solid Rivet is a military standard aircraft structural fastener designed for permanent joining of aerospace sheet metal components and structural assemblies. This solid rivet provides a high-strength mechanical connection and is commonly used in aircraft manufacturing, maintenance, repair, and overhaul applications where dependable structural fastening is required.

Manufactured in accordance with the MS20426 specification, this rivet features a 100-degree countersunk head design, allowing installation flush with the surrounding surface to reduce aerodynamic disturbance and provide a smooth external finish. The DD material designation identifies a 2024 aluminum alloy rivet with suitable strength characteristics for aircraft structural applications.

The solid construction allows the rivet tail to be mechanically formed during installation, creating a permanent joint capable of withstanding shear loads, vibration, and operational stresses. MS20426 countersunk rivets are widely used in aircraft skin assemblies, wing structures, fuselage panels, fairings, and other areas where a flush aerodynamic surface is required.

Proper installation requires correct hole preparation, approved riveting procedures, and inspection of the formed head to ensure the completed joint meets aircraft structural requirements. During maintenance, riveted areas should be inspected for looseness, corrosion, cracking, or deformation, with damaged fasteners replaced as necessary.

Key Features

- Part Number: MS20426DD6-7
- Manufacturer: Military Standard (MS) / Approved Aviation Hardware Manufacturer
- Component: Solid Aircraft Rivet
- Head Style: 100° Countersunk Head
- Material: 2024 Aluminum Alloy
- Diameter: 3/16 in. nominal rivet diameter
- Length: 7/16 in. nominal rivet length
- Function: Permanent structural fastening for aircraft sheet metal assemblies
- Designed for flush installation in aerodynamic aircraft surfaces
- Suitable for airframe structures, panels, skins, and structural repair applications