Answer Jim, to obtain the NG orifices you'll need the orifice holders. For the 5k burner use part number WP7527P023-60, 9.2k burner use part number WP74007961, 12.5k burner use part number WP7527P028-60 and 16k burner use part number WP7527P021-60. Thanks. Read More... Answered by AppliancePartsPros.com | Thursday, April 30, 2015