Air Hammer Adaptor Assembly (continued) Ref. 1 2 3 4 4:1 5 5:1 6 7 Part Number Qty. Description AU0PT40003 1 Fitting-Tee 138-7011 1 Fitting AU8HV23012 1 Valve-Ball AU8OA11212 1 Fitting-Straight 237-58 1 O-Ring 137-8313 1 Fitting-Elbow, 90 237-58 1 O-Ring 130-4526 1 Fitting-Reducer AU8PP10032 1 Plug-Pipe, Square Head Ref. 8 8:3 9 10 11 12 13 14 15 3 Part Number Qty.