WASHINGTON (AP) _ Edwin P. Wilson, a former CIA agent convicted of selling weapons to Libya, has filed a legal paper seeking to pursue financial claims against seven men including Egyptian President Hosni Mubarak and Richard V. Secord, a key figure in the Iran-Contra case, Wilson's lawyer said Friday.

Daniel S. Alcorn, Wilson lawyer, filed a motion in U.S. Bankruptcy Court in Alexandria, Va., this week asking that Wilson be allowed to sue Secord; Thomas G. Clines, Secord's one-time business associate; Theodore Shackley, a former CIA agent; Erich F. Von Marbod, a former Defense Department official, and three Egyptians, including Mubarak.

The planned lawsuit stems from Wilson's contention that in 1979 he lent the defendants $500,000 that was used to start Egyptian-American Transport and Service Co., a now-defunct corporation that pleaded guilty in 1983 to filing false statements with the U.S. government. Eatsco was created to ship U.S. military equipment to Egypt.

Wilson, who is serving a 52-year sentence in the federal penitentiary in Marion, Ill., contends he was promised 20 percent of the profits from Eatsco in exchange for his ''seed money.''

He says he never received his cut of Eatsco's profits, even though Clines, another former CIA agent, paid him back the $500,000.

Alcorn said Wilson's affairs have been in the hands of the bankruptcy court for three years so the ex-CIA agent needs authorization from the court to file the suit.

Secord, a private businessman who played a key role in the programs to sell weapons to Iran and buy arms for the Nicaraguan Contras in 1985 and 1986, has repeatedly denied that he had financial business with Wilson.

Wilson said Secord was a silent partner in Eatsco, a company in which Clines and an Egyptian, Hussein K. Salem, had a financial stake. The lawsuit contends that Mubarak, then vice president of Egypt, was ''to participate in Salem's share of the profits generated by the shipment of arms to Egypt.''

Among the papers filed by Alcorn was a copy of a receipt signed by Secord and Glenn Robinette, a former CIA security expert who is expected to be the leadoff witness when the congressional hearings on the Iran-Contra affair resume next Tuesday.

Dated Feb. 16, 1984, the paper says, ''Received from Richard V. Secord, cashiers checks for $33,000 made out in the name of Thomas G. Clines.''

Secord could not be reached for comment about the paper, but Robinette recalled that he picked up the check for Clines, who was out of the country at the time. Robinette and Clines were former business partners.

The money was a ''loan that Secord agreed to'' for Clines, Robinette said, adding that he did not know the purpose of the money. Robinette said he deposited the check.

''I gave Secord a receipt,'' Robinette said, explaining the paper.