The six victories away from home have come in 32 attempts.
Nene added 17 points and Washington held Phoenix to just 33 percent shooting. The Suns came no closer than four in the final quarter, during which both sides managed a mere 14 points.
Washington's Bradley Beal, who missed six games with a sprained left ankle earlier this month, aggravated the injury during the fourth quarter.
2014: NFL Cheerleaders [PHOTOS]
Julius Randle breaks leg during NBA debut