5120-01-115-3141 Bearing and Bushing Inserter. US Army part number 12292592-7. Photo is representative, actual part is identical in appearance, just different dimensions. Specs are posted below. MRC Parameter Characteristics ABHP Overall Length 2.980 inches minimum and 3.020 inches maximum ADBN Boss Diameter 0.493 inches minimum and 0.497 inches maximum APHE Operation Method Impact BCST Boss Length 0.390 inches minimum and 0.400 inches maximum BRZR Drive End Type BOSS MATT Material Steel SHPE Shape Cylindrical 14578 WCD2