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8-2. Interchangeability
Interchangeability of the parts between the Model NT 65MA2 and the Model NT 65MA is described below. Both
the parts that are not interchangeable and the parts that are interchangeable though their code numbers are
different are described in detail.
(1) Parts that are not interchangeable with those of the Model NT 65MA
Parts
Exhaust Cover [5]
Head Bumper [7]
Head Valve Spring [8] Common to the Model NR 65AK etc.
O-ring (P-22) [9]
Head Valve (A) [10]
Cylinder [11]
O-ring (I.D 34.7) [14]
Piston [15]
NT 65MA2
Newly designed
2.1 mm (.083") dia. hole
Common to the Model NR 65AK etc.
Common to the Model NR 65AK etc.
Common to the Model NR 65AK etc.
Newly designed
Bore diameter is concave.
Newly designed
Newly designed
O-ring type
Piston ring type
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NT 65MA
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