Batting gloves part of uniform when they hang out of pocket if they should be hit by ball?

No. Should a player's batting glove that is hanging out of his pocket be hit by a pitched ball, the player is not awarded first base. That (batting glove hanging out of a pocket) is not considered part of the batter's body nor part of the equipment a player wears. If the ball hits the bill of the helmet, the player is awarded first base because the helmet is part of the equipment all players wears to bat.