For details of base GU5.3, see sheet 7004-109.
PURPOSE: To check the base GU5.3 in the following respects:
-the diameter of the individual pins (dimension E);
-the combined displacement and diameter of the pins (dimensions D and E);
-the length of the pins (dimension F);
-dimensions Smax and Hmax;
-the allowable build-up of cement within dimension W.
TESTING: It shall be possible to insert each individual pin of the base into the hole e1 until surface Q of the base touches surface R of the gauge.
It shall not be possible to insert each individual pin into hole e2.
It shall be possible to insert both pins simultaneously into the holes e.
It shall be possible to insert the base into the gauge with the pins entering at surface Q until surface Q of the base is in contact with surface Q of the gauge.
In this position, the ends of the pins shall be co-planer with or project beyound surface X but shall not project beyond surface Y.
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Nina She