4.4: Understanding Feature Control Frames

Label each part of the feature control frame.

a

b

c

Tolerance Information

Datum References

Geometric Symbol

Label the verbiage used between each part of the Feature Control Frame when reading aloud.

a

b

c

within

relative to

the feature must be

Using the image, identify the symbol for each of the following.

• D

• Least Material Condition

• B

• Maximum Material Condition

• A

• Diameter

• E

• Between

• C

• Maximum Material Condition

The feature must be ___________________

within a ___________________ tolerance zone

at a _____________________

relative to _________________.