An Essex County man admitted Thursday of participating in two schemes to defraud the Department of Defense, authorities said. Alan Aranowitz, 75, of Roseland, pleaded guilty to two counts of wire fraud conspiracy, the U.S Attorney’s Office District of New Jersey said in a release. One of the schemes ran from 2015 through August 2018, where Aranowitz and others who were not identified, entered into contracts with the DoD to supply replacement parts for the military, such as screws, nuts and bolts, through Aranowitz’s company, Arlo Corporation, the office said. He conspired with the owner and op…