Court documents show the defendant, Ben-Ami Kadish, reported to the same handler as Jonathan Pollard, an American who spied for Israel in the 1980s and triggered a scandal that rocked U.S.-Israeli relations.
Kadish's plea indicates the Israeli spy network that obtained U.S. nuclear secrets through Pollard spread further than previously acknowledged.
It comes as the Bush administration considers a new request by Pollard for a commutation of his life sentence.
Prosecutors say Ben-Ami Kadish provided classified documents, including some relating to U.S. missile defense systems, to an Israeli agent, Yosef Yagur, who photographed the documents at Kadish's residence.
Sentencing guidelines call for a maximum of six months and prosecutors said they would not oppose a sentence without jail time, according to his plea agreement.
So for all you traitorous money grubbers, go ahead and sell classified info, you won't get sent to jail!