A federal prosecutor told a judge here yesterday that the former manager of the General Services Administration store at the Department of Justice headquarters in Washington accepted bribes worth "more than $15,000" in return for falsifying the store's supply invoices to benefit a private firm.

The GSA store manager, James Irving Taylor, 44, of Washington, told U.S. District Court Judge Herbert F. Murray he accepted gifts of color televisions, radios and clothing. He pleaded guilty to a charge of conspiring to defraud the federal government.

"I did wrong," Taylor said. "Nobody forced me to do anything. I just got misled and fell into a trap."

Assistant U.S. Attorney Daniel M. Clements said Taylor also accepted numerous "household repairs" in return for authorizing payments for the firm of James Hilles Associates for office supplies that never were delivered.

Two other former GSA store managers also pleaded guilty here yesterday. So far, 15 persons, including two officers of James Hilles Associates, have pleaded guilty and only one of the 13 persons indicted Sept. 29 has pleaded innocent to a fraud charge. Two others will be arraigned later this week.

The former manager of the GSA store at the General Accounting Office Building in Washington, Charles Carroll Lee, 45, of Woodbridge, Va., and the former manager of the GSA industrial store at the Navy Yard Annex in Washington, William Herbert Jordan, 45, of Washington, were the others who pleaded guilty yesterday to charges of conspiring to defraud the government.

Clements told the court that Jordan allegedly accepted bribes worth $3,000 to $5,000 from Hilles Associates, including a used car, color televisions, cloths, luggage and a diamond ring.

Lee allegedly accepted bribes of clothing, color televisions, radios, airline tickets, luggage, typewriters, appliances and cash from Hilles, Clements said.