The Annandale Boys Club, which last month was temporarily barred by Fairfax County officials from conducting bingo games and raffles because of questions about the group's bookkeeping practices, won a court injunction yesterday delaying the county's action.

Fairfax County Circuit Court Judge James Keith temporarily enjoined the Fairfax County Board of Supervisors and the county zoning administrator from suspending bingo and raffle games at the club.

The court action came after county supervisors voted unanimously Dec. 14 to suspend bingo operations at the club on Dec. 31 and make a final decision on the matter after a Feb. 8 public hearing.

"You'll be permitted to operate until the hearing and a permit is either denied or granted," said Keith.

Supervisors had suspended the club's bingo and raffles games after a county staff report said the club, which had gross receipts of $880,000 in 1980, failed to keep adequate financial records, illegally posted signs advertising the games and served alcoholic beverages. The group was specifically cited for failing to keep a record of bingo prize winners, their addresses and the amount of their winnings, as required by county law.

Paul Kelley, executive director of the boys club, testified that the county's action was unfair because the group had not been given notice of the critical staff report before the club filed its bingo application in November.