page_title: Jesus nut
hierarchical_section_title: Jesus nut
caption_attribution_description: "Jesus nut" or main rotor attach nut from a Bell 222U
context_page_description: Jesus nut is a slang term for the main rotor retaining nut or mast nut, which holds the main rotor to the mast of some helicopters. The related slang term Jesus pin refers to the lock pin used to secure the retaining nut. More generally, Jesus nut has been used to refer to any component that is a single point of failure which results in catastrophic consequences.
context_section_description: Jesus nut is a slang term for the main rotor retaining nut or mast nut, which holds the main rotor to the mast of some helicopters. The related slang term Jesus pin refers to the lock pin used to secure the retaining nut. More generally, Jesus nut (or Jesus pin) has been used to refer to any component that is a single point of failure which results in catastrophic consequences.
caption: Main rotor attach nut, or "Jesus nut", from a Bell 222U, shown in hand for size perspective (left) and installed with locking key (right)
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