Nancy Davies of Washingtonian sank a 10-foot birdie putt on the 18th hole yesterday to hand Army Navy's Sue Keeney and Betty Looney their first loss in the Women's District Golf Association's team matches at Argyle. However, the victory was not enough to offset results in the other brackets and Army Navy took the match, 5 1/2-3 1/2.

In other matches, Bethesda surprised Columbia, 6-3, and congressional got by Fairfax, 5 1/2-3 1/2.

Davies and her partner. Emily Baker, were playing off Keeney's two handicap. Davies received five strokes and Baker 11. However, Davies didn't need any help on the 19th when she put her second shot pin high 40 yards from the cup. She wedged to 10 feet and made good. The Washingtonian duo tied Keeney and Looney over the first nine and Davies' put on the 18th meant the match.

Nancy Hollenbeck and Martha Anderson of Army Navy had little trouble in their match, closing out Judy Koenick and Carol Hasegawa on the 15th hole.

Congressional shook up its lineup pairing Pam Smyth and Joan Crampton in the top bracket against florence Burdick and Shirley Wester of Fairfax. It turned out well because the Smyth team swept the match 30.

Columbia's top pair of Beth Carpenter and Betty Morin were four down at the turn to Bethesda's Laura Miller and Phyllis Foster. The Carpenter duo rallied to win the back nine and save a point. Blanca Fortin and her Columbia partner, Dot Gates, were four down after 10 holes against Liz Weste and Mary Kauffman but squared things by winning the next four holes and the match.