The New Holland 596443 is a genuine OEM spring lock washer, also known as a Grower washer, designed to provide secure fastening and prevent nuts and bolts from loosening due to vibration in demanding operational environments. This essential component is manufactured to New Holland's precise specifications, ensuring reliable performance and proper fit across a wide range of New Holland and Case IH agricultural and construction equipment models. It features an inner diameter of 10.5 mm, an outer diameter of 17.5 mm, and a thickness of 2.5 mm, weighing approximately 0.005 kg.