WASHINGTON -- While Prince Fielder kept hitting long shots, Austin Kearns figured his turn would come.
"It's easy to press," said Kearns, who had two RBI in his previous 17 games. "Yeah, I have. Everyone does. You just try to limit it, relax as much as possible instead of forcing it."
Prince Fielder hit two home runs, tying Alex Rodriguez for the major league lead with 29. Ryan Braun also connected as the Brewers extended their homer streak to 16 straight games, their longest string since a 19-game run in 1996.
"We do hit a lot of home runs," Fielder said. "It's not what we try to do. It's just the way it happens, which is good. Regardless of the home runs, we always feel like we have a chance. We always feel confident we can come back."
Jason Simontacchi (6-6) allowed eight hits and three runs -- on three homers -- in six innings.
"My neck was sore," wisecracked Simontacchi. "You know what? Those guys are hot. Put the ball over the plate, especially against that team, and they're going to do some damage."
Milwaukee's Corey Hart went 0-for-4, snapping his hitting streak at 22 games, tied for the third-longest streak in team history.
Damian Miller matched a career high with four hits for the NL Central-leading Brewers, who have lost three of four. It was Miller's second four-hit game in six days.
Johnny Estrada had a pinch-hit home run in the ninth off Nationals closer Chad Cordero. Hart walked with one out and reached second on a wild pitch, but Cordero retired J.J. Hardy and Braun on groundouts for his 15th save in 21 chances.
"We had chances to get a big hit. They battled and they battled back. It was just a great game. We played a great game and we lost," Brewers manager Ned Yost said.
Braun and Fielder homered in a four-pitch span off Simontacchi in the first. Braun crushed a 3-2 fastball into the upper deck in left field and Fielder hit a shot to right-center.
The Nationals batted around in the fifth, rallying for four runs on five straight hits off Jeff Suppan (8-8).
Ronnie Belliard singled with one out and went to third when center fielder Tony Gwynn misplayed Ryan Zimmerman's single. Dmitri Young followed with an RBI single off second baseman Rickie Weeks' glove and Ryan Church tied it with an opposite-field liner to left. Kearns then doubled to the wall in left center for a 4-2 lead.
"It shows that hits don't win ballgames. Hits with runners in scoring position win ballgames," Washington manager Manny Acta said. "That's what we needed."
Fielder opened the sixth with his 29th homer. It was Fielder's fourth multihomer game this season.
Simontacchi escaped a two-out jam with runners on the corners, getting the last out of the sixth when center fielder Ryan Langerhans made a fully extended, diving grab of pinch-hitter Tony Graffanino's drive to the left-center gap.
"That was a huge play for us," Simontacchi said. "Mentally and physically, it put the momentum on our side."
Suppan allowed four runs and six hits. He walked five and struck out three in five innings.
Felipe Lopez's RBI double gave Washington an insurance run in the seventh.
The Brewers have hit two homers in an inning eight times this year. ... Washington has been outscored 60-30 in the first inning. ... Church was hit by a pitch in the second for a team-high sixth time this season. ... When Weeks was walked intentionally in the fourth, it marked the first base on balls issued by a Nationals pitcher since the ninth inning of Wednesday's game, a span of 22 innings. ... Estrada hit his second career pinch-homer against the Washington franchise. The first came July 18, 2001, against the then-Montreal Expos.