Fig Multiple Datum Reference Frames

features referenced in the same order of precedence and at the same material condition, as applicable, they are considered a composite pattern with the geometric tolerances applied simultaneously as illustrated by Fig. 4-26. If such interrelationship is not required, a notation such as SEP REQT is placed adjacent to each applicable feature control frame. See para. 5.3.6.2, and Fig. 5-18.

4.5.12.1 Simultaneous Requirement Composite Feature Control Frames. The principle stated in para. 4.5.12 does not apply to the lower segments of composite feature control frames. See paras. 5.3.6.2, 5.4.1, and 6.5.9. If a simultaneous requirement is desired for the lower segments of two or more composite feature control frames, a notation such as SIM REQT is placed adjacent to each applicable lower segment of the feature control frames.

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