Raymond Louis Urgo, a Georgetown hairdresser convicted last June of involuntary manslaughter in the shooting death of his girl friend at a sex and drug party at his apartment, was sentenced yeaterday to five years in prison by an Arlington judge despite pleas that he needs psychiatric help.

Arlington Circuit Court Judge Charles S. Russell imposed the sentence following a testimony yesterday of psychiatrists who said Urgo, 33, had "a gun fetish" and "low selftesteem" and "needed phychiatric help in a warm environment." Russell disagreed with one psychiatrist's argument that Urgo was cajoled into the drug use and sexual activities with three women that led to the death of 25-year-old Ellen Dana Kisacky.

The five-year prison term - the maximum for involuntary manslaughter - was set by the jury that convicted Urgo on June 27. The judge had the power to reduce it.

Urgo could be eligible for parole in 15 months.

One psychiatrist testified yesterday Urgo possessed pornographic literature that gave him the idea of using his revolver - a 357 magnim - as a sexual stimulant by placing the gun's barrel in Miss Kisacky's mounth.

Urgo could not remember pulling the trigger, the psychiatrists said he told them.

Urgo contended thoughout the week-long trial that the shooting was an accident, that he produced his gun only to add "realism" to the party at which he and the women took Quaaludes (soporific pills), drank wine and engaged in sexual activities.

"Those who say the use of drug and peddling pornography are victimless crimes should be locked up in a room with a transcrip: of this proceeding," Judge Russell said. Urgo "had the power to exercise his free will. He made the selection of drugs, bad company and poor literature . . . he's responsible of his actions." Russell declared.

Urgo's placing the gun in Miss Kisacky's mouth "was the most irresponsible, wanton, reckless form of behavior one can ever imagine," Russell said.

Urgo said in his own behalf in court for the first time yesterday. He had not testified at his trial, although tape recordings of two interviews with police and a phone conversation were played in the courtroom.

Yesterday, Urgo told the judge: "I can't really say how I feel because words aren't adequate. But to say I'm overwhelmed...consumed with remorse, is putting it very mildly." He wiped tears from his face and struggled to control his breaking, trembling voice.

Urgo said he now had abandoned drugs.

"I feel to be out in society, being productive, helping my mother..." Urgo sighed, wiping his face with his hand. "That's about it," he said, then sat down, crying.

D. F. Regis Riesenman, a psychiatrist called by prosecutors, who conteneded that Urgo lied several times about the events at the party and that he is a dangerous person, testified that he felt Urgo "has a real problem, a sexual problem."

"The gun was his fetish," Riesenman said. "Other people use shoes stockings. That's why what happened."

Riesenman said the gun was used for "oral sexual stimulation," and that Urgo had taken pictures of the gun.

"He likes to hear the gun click . . . he told me that," Riesenman testified.

Riesenman also said Urgo has had problems "from the time he was born."

"He has a very high IQ," Riesenman said. But "he has a poor image of himself, no confidence, no self-esteem."

Urgo feels sexually inferior and has a fear of failure, but "he could be very productive," Riesenman said.

Riesenman said that Urgo had not exhibited the fetish before the shooting incident but indicated that it was a pattern of his sexual behavior that could recur.

In contrast, Harold Kaufman, a psychiatrist called by defense attorneys Richard Ben-Vensite and Jerome Wiener, said the incident was a "happenstance" and that Urgo was not sexually deviant. There probably would never be another shooting incident, Kaufman said.

Kaufman said that during interviews Urgo was remorseful. "He was broken hearted," Kaufman said. "He demonstrated this remorse by crying and saying 'I'm sorry, I'm sorry, I'm sorry.'"

Kaufman said Urgo did not demonstrate and obsession with guns and that the incident "just seemed to come into being on a very stressful day."