Mili Std - Hexagon Self-Locking Nut, Extended Washer | MS21043-5 

• Thread Class: 3B
• Thread Direction: Right-Hand
• Locking Feature: Prevailing Torque All Metal Design
• Washer Outside Diameter: 0.520 Inches Maximum
• Lubrication: Soluble Lubricant
• Overall Height: 0.251 Inches Minimum And 0.266 Inches Maximum
• Nut Style: Hexagon
• Washer Thickness: 0.023 Inches Minimum
• Width Across Flats: 0.367 Inches Minimum And 0.378 Inches Maximum
• Temp Rating: 800.0 Deg Fahrenheit Nominal
• Thread Series: Unjf
• Thread Quantity Per Inch: 24
• Nominal Thread Size: 0.312 Inches
• Material: Iron Alloy 660 Overall
• Material Document And Classification: Ams 5525 Assn Std Single Material Response Overall Or Ams 5735 Assn Std Single Material Response Overall
• Precious Material And Location: External Surface Silver
• Surface Treatment: Silver Overall
• Surface Treatment Document And Classification: Qq-S-365 Fed Spec Single Treatment Response Overall Or Ams 2410 Assn Std Single Treatment Response Overall