Only a small portion of the more than 30,000 appeals have been decided, but none favor employees.
Drawdown of TSP accounts could impact long-term finances of employees who faced short-term hardships.
Raise of 1 percent would follow freeze on salary rates over 2011-2013.
Furloughed federal employees generally would be expected to report for work on their next regular working day but there could be exceptions.
Federal workers kept on the job would lose the guarantee of retroactive pay if they missed work during shutdown.
Pentagon allows employees who took off too much unpaid time to substitute paid leave.
Plans for possible funding lapse are to include review of which employees would stay on the job.
Federal employees have taken increasing numbers of loans and withdrawals from their retirement savings accounts in recent months.
With furloughs reduced from 11 to 6 days, the Defense Department is trying to figure out how to compensate workers who have already taken more than their share.
Employee groups are calling on Congress to stop furloughs of DoD employees now rather than waiting until fall.