Congressional allies of federal employes and their unions yesterday used delaying tactics to stall President Carter's civil service revision bill after only minimal debate on the House floor.

Union supporters, led by Rep. William Clay (D-Mo.), have vowed to continue delaying the bill when it comes up again, unless the Carter forces agree to some concessions on labor issues.

Rep. Morris K. Udall (D-Ariz.), who has played the role of mediator and floor manager for the bill, met with Clay, William Ford (D-Mich.), another labor supporter, and administration representatives yesterday afternoon to try to work out the differences.

However, Udall said afterward, "the troops are dug in pretty deep on both sides."

The prolabor forces are pushing for revision of the Hatch Act, which would allow federal employes to take an active role in partisan politics. They attached that measure to the civil service bill but the White House is fighting to delete it.

The labor faction would abandon its insistence on Hatch Act revision in exchange for further strengthening of the bargaining rights of federal employes unions, but the White House has refused to budge on that issue, sources said.

The bill has been tentatively scheduled for floor action again next week, but Udall and others were pessimistic about its chances of coming up that soon.