Former Naval Academy center David Robinson, the No. 1 pick in June's National Basketball Association draft, today will sign a contract of longer than five years with the San Antonio Spurs, the total value of which, according to his representatives, compares favorably to any contract in sports.

Currently assigned to a base in King's Bay, Ga., Robinson is to be accompanied by his parents at a formal signing ceremony this morning in San Antonio.

The 7-foot-1 graduate of Osbourn Park High School in Manassas still must complete a two-year commitment to the Navy during which time he will remain an amateur and thus, eligible to compete in the 1988 Summer Olympics, said Lee Fentress of Advantage International, the Washington-based firm representing Robinson.

Robinson's professional basketball plans, which had been the subject of considerable public speculation because of the service commitment and questions over how long the Spurs would be able to maintain their rights to him, came together Tuesday during a 12-hour meeting in San Antonio attended by Fentress; Jeff Austin, another attorney for Advantage; Spurs President Angelo Drossos and B.J. McCombs, another member of the Spurs' board of directors. It was just the third meeting between the two sides, Fentress said last night.

"I was surprised at the speed of the negotiations and the level at which they were conducted," Fentress said.

The result of those negotiations is a package that "compares favorably to every contract in sports," said Fentress, "any sports -- basketball, baseball, football -- veterans or rookies."

The New York Times reported that the guaranteed contract was worth $26 million over eight years, including a $1 million signing bonus.

Washington Bullets center Moses Malone was the highest-paid player in the NBA last season at $2.145 million, according to a salary survey compiled annually by Sport magazine. Los Angeles Lakers center Kareem Abdul-Jabbar made about $2 million last season, according to Sport's survey. Abdul-Jabbar last summer signed a two-year contract worth more than $5 million in which he will be paid a minimum of $3 million for the 1988-89 season, making him the highest-paid player in the history of team sports.

As long as Robinson remains in the Navy, the money he earns from the Spurs and from any endorsement contract he may sign will be paid into a trust fund that has been established with the U.S. Amateur Basketball Association, Fentress said.

"And there is a procedure for him {Robinson} to withdraw from that trust," Fentress said.

Robinson, who theoretically could have become eligible to negotiate with any NBA team by the time he fulfills his commitment to the Navy in May 1989, and his representatives examined "every possible scenario," Fentress said.

"We decided that if he waited for two years," Fentress said, "we could not have done as well."

It has been speculated that Robinson, whose active duty service commitment was reduced from the normal five years to two in January by then Secretary of the Navy John H. Lehman because of Robinson's height, might be allowed to turn pro following the Summer Olympics, which are to be held Sept. 17-Oct. 2, 1988 in Seoul.

"I cannot comment on that," Fentress said.

Robinson, who represented the United States in last summer's Pan American Games, was the consensus college player of the year last season. He is the NCAA's all-time career leader in blocked shots with 516 and 10th all-time in scoring with 2,669 points.