The R40127 ATP 4-1/2'' X 5'' X 1/4'' Ring is a robust and precision-engineered retaining ring designed for secure fastening in mechanical assemblies. Ideal for use in conjunction with socket retaining pins, this ring ensures a tight and reliable fit, enhancing the stability and performance of your equipment. Built to withstand demanding conditions, the R40127 ATP 4-1/2'' X 5'' X 1/4'' Ring is an essential component for professionals who require dependable solutions in their industrial and maintenance tasks.