ASNA0044-120BCL - Nut

Part number ASNA0044-120BCL is an aerospace-standard castellated hex nut designed for secure fastening applications requiring positive mechanical locking. The castellated crown permits installation with a cotter pin or safety wire through a drilled bolt or shaft, preventing loosening in high-vibration and dynamic-load environments.

Manufactured from high-strength alloy steel with a corrosion-resistant finish, this nut is commonly used in aircraft structural assemblies, landing gear systems, engine installations, and control linkages where reliability and retention are critical.

Dimensions

• Inside Diameter (Thread ID): 9.66 mm
• Outside Diameter (Hex OD): 17.96 mm
• Height: 8.72 mm

Configuration

• Type: Castellated hex nut
• Standard: ASNA0044 aerospace specification
• Material: High-strength alloy steel
• Finish: Corrosion-resistant plated finish
• Locking Method: Cotter pin / safety wire compatible
• Features: Castellated locking crown, heavy-duty hex body, vibration-resistant retention
• Applications: Aircraft structures, wheel and axle assemblies, engine mounts, flight control systems, and other safety-critical fastening locations requiring positive locking retention