07.2398 - Hexagon Nut

This part should fit the following pumps:-

• P11/10-150
• P11/13-150
• P11/15-150
• P11/3-200
• P11/5-200
• P21/5-450
• P21/7-400
• P21/15-160
• P21/16-200
• P21/18-130
• P21/19-160
• P21/23-130

2 or 4 of this item is normally used in a pump.