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., and Fig. 5-18. 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., 5.4.1, 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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