The former assistant manager of Bethlehem Steel's Baltimore shipyard was placed on two years probation and ordered to repay $50,000 obtained by fraud from a shipping company.

U.S. District Court Judge Vincent Broderick also gave Thomas A. LaMonica a one-year suspended sentence and fined him $1,000 for arranging a payoff for his personal benefit from Victory Carriers on the heels of a Bethlehem Steel payoff to a Victory representative to obtain repair work from the shipping company.

LaMonica, of Parkton, Md., pleaded quilty to a charge of defrauding Victory on Aug. 8. A few weeks before LaMonica's plea, Bethlehem had admitted to an elaborate scheme during the early 1970s in which it padded nearly $2 million on shipowner's bills to raise bribe money to win lucrative repair contracts.

In sentencing LaMonica, Broderick also required him to devote 12 months on a full-time basis to "a community service to be approved by me" and directed him to appear in court again Dec. 5 to "set forth the complete story of your involvement in this crime and all the developments that led up to your crime here."

At the sentencing, an attorney for Bethlehem Steel Corp. announced that a civil suit pending against LaMonica in Philadelphia had been settled. Bethlehem had charged LaMonica and another former employe, Clifford Wise, with diverting the company's money for their own use. Settlement discussions are pending with Wise, a company spokesman said.

LaMonica had pleaded guilty to charges that he joined with a representative of Victory, a shipping company with offices in Manhattan, to defraud the company by charging for work not actually performed. According to the prosecutor's charges, he knew that Bethlehem had paid about $30,000 in cash to a representative of Victory to obtain repair work.