Navships Calibration Test Block (Inch Version) ALUMINUM 7075-T6

Used for distance amplitude correction, sensitivity levels and flaw depth information. MTDs are engraved near both scan edges on one face. In accordance with MIL-STD-271G Figure 9, and NAVSHIPS Specification 0900-006-3010/Section 6. Also known as a "Mare Island block.

Geometry: Contains six 3/64" diameter side-drilled through-holes at distances of .25" to 2.75" in .25" increments. MTDs are engraved near both scan edges on one face. 

Dimensions: 12.000" x 3.000" x 1.250".

Material: ALUMINUM 7075-T6.