The United States paid a $200 million Iranian claim Friday for undelivered American weapons dating from before the Iranian revolution, Western diplomats said.

The claim was part of Iran's Foreign Military Sales (FMS) claim against the United States, which Tehran has set at $11 billion total, a figure Washington disputes as inflated.The FMS claim is the largest before the Iran-United States Claims Tribunal here. It is a closed-door forum set up by the 1980 Algiers Accord to adjudicate financial claims between the two nations arising from the 1979 revolution and consequent broken contracts.

The Iranian government has repeatedly set return of its assets held by Washington as a precondition for any intervention on behalf of the 13 Western hostages held in Beirut by pro-Iranian Shiite Moslem militants.