Sharp R28STM Microwave Glass turntable tray - 262100500003Glass turntable tray for Sharp microwave ovens. Part number 262100500003 or F399610 The function of the microwave dish is to hold and rotate the food during cooking to ensure that the food is being heated evenly throughout. The microwave tray or microwave plate is usually made of toughened glass. not designed to be used in a conventional oven unless by design. The microwave turntable sits on a microwave roller ring and is driven by the turntable