EMP produces simple to advance technological precision machined components. They are a full-service manufacturer and engineer focusing on delivering value-added equipment and technical solutions to their clients using thermal and high-quality management technology. Most importantly, EMP has adapted to meet global problems with success. PROP NUT EMP - 11-00121 Its primary function is to ensure that the propeller is positioned securely against the shaft taper. Prop nuts when put under a lot of pressure in normal operations it keeps the propeller pressed on the shaft and well balanced. Key Features: Propeller noise and vibration lessened. It is crafted from high-quality, long-lasting materials. Provides a greater contact point to stabilize the propeller. It can withstand underwater pressure for long periods. Installation does not necessitate the use of any complicated tools. Specifications: Brand: EMP SKU: 11-00121 UPC: 840080408644 Weight: 0.13 LBS Alternate Products SKU: "18-3700", "11-00121" Manufacturer Part Number (MPN): 11-00121