MIL STD 271F Performance Verification Reference Test Block A516-70 Steel      

Perform instrument verification test using performance verification block. This test shall produce a useable response for both audio and meter outputs or oscilloscope display, as applicable. MIL STD 271F Performance Verification Reference Test Block (Alloy) 

Material: A516-70 Steel

Geometry: Overall dimensions: 3/8" thick x 4.0" wide x 6.0" long 

Bare Contains: (4) EDM notches @ .015" deep x .010" max wide x .250" long 

Manufactured IAW MIL-STD-271F, Paragraph 7.4.2.