WASHINGTON—President Barack Obama has once again nominated Joshua Gotbaum to be director of the Pension Benefit Guaranty Corp.

The president originally nominated Mr. Gotbaum, an operating partner at private equity firm Blue Wolf Capital Management L.L.C. in New York, for the top PBGC position in November, but the nomination stalled in the Senate.

Sen. Sherrod Brown, D-Ohio, blocked Mr. Gotbaum’s nomination as part of dispute with the PBGC over the termination of pension plans sponsored by Troy, Mich.-based Delphi Corp.

Frustrated by the delay, President Obama bypassed Congress while it was in recess this month and named Mr. Gotbaum as PBGC director. As a recess appointee, though, Mr. Gotbaum can serve only through the end of 2011 under Senate rules.

By nominating him again on Monday, the president made it clear he wants Mr. Gotbaum to run the PBGC through the end of his term.

Mr. Gotbaum is expected to join the PBGC later this week, an agency spokesman said.