MS21042L04 Cadmium-Plated Steel Bolt, Steel Self-Locking Nuts (No Nylon Collar) Type, 4-40 Size

The MS21042L04 is a high-performance self-locking nut designed for secure fastening in demanding environments. Featuring a robust steel construction without a nylon collar, it provides reliable friction grip on bolt threads, ensuring stability under various conditions. This all-metal nut is suitable for high-temperature applications, making it an ideal choice for aerospace and industrial uses.

Features
• Self-locking design for enhanced security
• High-temperature resistance up to 1200˚ F
• Available in cadmium-plated steel, stainless steel, and silver-plated stainless steel

Benefits
• Prevents loosening due to vibration and thermal expansion
• Durable construction ensures long-lasting performance
• Versatile applications across various industries

Specifications
• Diameter: 0.112 to 0.142 in
• Dash Number: L04
• Thread Direction: Right Hand
• Width Across Flat: 0.15 to 0.158 in
• Height: 0.103 to 1/8 in
• Nut Type: Hexagonal
• Material: Steel
• Thread Size: #4-40
• Finish: Cadmium
• Thread Type: UNC-3B
• Lubrication: Dry Film
• Temperature Rating: 450 deg F
• Domestic/Import: Domestic

Technical Information
• FAA-STD Approved
• MIL-S-8879 Qualified