5120-01-153-1812 Bearing and Bushing Remover. US Army part number 11629778. Major Diameter is approx. 5-1/8″, Minor Diameter is approx. 4-13/16″. Step depth is 1/4″. Other specs are posted below. MRC Parameter Characteristics ABHP Overall Length 1.000 inches nominal AGAV End Item Identification 2350-01-048-5920 APHE Operation Method Nonimpact MATT Material Steel SHPE Shape Round 14578 L2B9