LOCKWIRELESS ANTI-ROTATION FITTING

摘要

A lockwireless, anti-rotation fitting (10) for attachment to connectors, including a sleeve (12), nut (14), spring (18), and retaining washer (16). The sleeve (12) is slidably inserted within the nut (14) and the spring (18) is inserted on the sleeve (12), grips it, and locks the sleeve (12) with the nut (14). The nut (14) includes a plurality of serrations (68) which engage a tab (82) extending from the spring (18). The spring (18), which is semi- anchored to the nut (14), can only rotate inwardly or in the clockwise direction. The tab (82) of the spring (18) may only ratchet over the serrations (68) when a predetermined counter-clockwise or loosening torque is applied to the nut (14). The serrations (68) allow for rotation in the clockwise direction, while preventing counterclockwise rotation until a predetermined torque is reached in order to prevent self-loosening. The spring (18) prevents accidental loosening due to vibration of components of the system to which the fitting (10) is attached.