- MAS P20-1 - Needle Cap
- MAS P20-4 - O-Ring for Nozzle Cap
- MAS P20-6 – Needle Packing
- MAS P20-7 – Needle packing screw
- MAS P20-10 - Secondary Lever Guide (attached to #12)
- MAS P20-12 - Needle Chucking Guide
- MAS P20-13 – Needle Guide Spring
- MAS P20-14 - Needle Adjusting Sleeve
- MAS P20-15 - Needle Chucking Nut
- MAS P20-16 - Standard Handle
- MAS P20-19 - Trigger Plunger O-Ring
- MAS P20-20 - Valve Body O-Ring
- MAS P20-21 - Valve Body
- MAS P20-22 - Valve Rod O-Ring
- MAS P20-23 - Valve Rod
- MAS P20-24 - Valve Rod Spring
- MAS P20-25 - Valve Rod Spring Retainer
- MAS P20-26 - Hose Connector Nut
- MAS P20-28 - Hose Connector Barb