D.C. Superior Court Judge Nicholas S. Nunzio denied requests by four Hanafi Muslims yesterday for reductions of their lengthy prisons terms in connection with their 1977 convictions in the violent takeover of three Washington buildings and the holding of 149 hostages.

Nunzio's action came just 10 days after he had freed another Hanafi Muslim over the objection of government prosecutors, saying the defendant had been a model prisoner who had been rehabilitated.

In his written order, Nunzio said the he "remains convinced" that the sentences imposed on three of the Hanafis -- Abdul Rahim, Abdul Adam and Abdul Latif -- were "just and should not be distrubed."

A fourth Hanafi, Abdul Muzikir, had file his request too late, Nunzio's order said, and was denied.

Each of these four Hanafis had filed their requests for reduction last year. Rahim had been sentenced to 28-to-84 years in prison; Adam was given 44-to-132 years; Latif a sentence of 36-to-108 years, and Muzikir a term of 77-to-231 years.

The four were among 12 Hanafi Muslims convicted in July 1977 of charges relating to the seizure of the headquarters building of B'nai B'rith, one of the nation's major Jewish service organizations, at 1640 Rhode Island Ave. NW in March 1977, where more than 120 hostages were taken; the District Building downtown, and the Islamic Center on Massachusetts Avenue NW, where several more hostages were seized.

Radio reporter Maurice Williams was shot and killed in the takeover of the District Building, and Mayor Marion Barry, then a City Council member, was wounded in a hail of gunfire before the Hanafis surrendered to police three days after the takeover.

Muziker was convicted of various charges relating to the takeover, including the shooting fo Maurice Williams. The other Hanafis -- Adam and Latif, who occupied B'nai B'rith, and Rahim, who was part of the Islamic Center takeover -- also were convicted of several charges.

Attorneys for Latif and Rahim were not available for comment yesterday. Adam's attorney, Theophilus Jones, said that "my client has gotten due process according to the Constitution of the United States all the way up to the Supreme Court . . . I believe now we're at the end of the line."

On Jan. 2, Nunzio effectively cut the sentence of Abdul Hamid, a Hanafi serving a 36-to-108-year prison term, to time served. The government last week appealed the ruling.