WordPress query_posts by meta field for custom post type

gistfile1.php

    query_posts(array(
        'post_type' => 'your-post-type-here',
        'meta_key' => 'your-meta-key-name',
        'meta_query'=> array(
            array(
                'key'=>'your-meta-key-name',
                'value'=> 'your-search-val',
                'compare' => '='
                )),
        'orderby' => 'meta_value_num',
        'order'     => 'ASC'
    ));