What are the dimensions of an MS20430AD-4-8 rivet?

The designation MS20430AD-4-8 specifies critical dimensions for rivets in aerospace applications, allowing for precise identification. In this code, "AD" refers to the alloy type, "4" indicates the diameter of the rivet, and "8" denotes the length.

To decode specifically:

• The "4" indicates that the rivet has a diameter of 1/8 inch (as a diameter code typically reflects the diameter in 1/32 inch increments; therefore, 4 corresponds to 1/8 inch).

• The "8" indicates the length of the rivet, which is 1/2 inch (with each unit representing 1/16 of an inch).

Thus, the dimensions of an MS20430AD-4-8 rivet are correctly interpreted as having a diameter of 1/8 inch and a length of 1/2 inch. Understanding this rivet designation is essential not only for selecting the right fastener for assembly but also for ensuring compliance with aerospace standards in construction and maintenance.