CUSTOM McDONNELL DOUGLAS 12 BOLT HOLES WITH CORNER AND MID WALL NOTCH REFERENCE STANDARD (Inch Version) Custom McDonnell Douglas 12 bolt hole reference standard with a 0.060" (L) x 0.030" (D) x 0.005" max width mid-wall notch, and 0.030" x 0.030" x 0.005" max width corner notch in each hole. Hole sizes (0.2966", 0.3122", 0.3278", 0.3434", 0.359", 0.3746", 0.3902", 0.4058", 0.4214", 0.437", 0.4526", 0.4682") NDT 06-20-01 FIG.4. Sheet 1 Page 8. Includes Test Report and Certificate of Conformance. DIMENSION: 4.8" (L) x 2" (W) x 0.25" (T) Holes SIZE: Ø0.2966", 0.3122", 0.3278", 0.3434", 0.359", 0.3746", 0.3902", 0.4058", 0.4214", 0.437", 0.4526", 0.4682" Hole Notch Configurations: • 0.060"L x 0.030"D x 0.005" max width mid wall notch in holes (Qty 12) • 0.030" x 0.030" x 0.005" max width corner notch in each hole (Qty 12) NOTE: For special alloy request by mail.

CUSTOM McDONNELL DOUGLAS 12 BOLT HOLES WITH CORNER AND MID WALL NOTCH REFERENCE STANDARD (Metric Version) Custom McDonnell Douglas 12 bolt hole reference standard with a 1.5mm (L) x 0.76mm (D) x 0.12mm max width mid-wall notch, and 0.76mm x 0.76mm x 0.12mm max width corner notch in each hole. Hole sizes (7.5, 7.93, 8.33, 8.7, 9.12, 9.5, 9.9, 10.3, 10.7, 11.1, 11.5, 11.9mm) NDT 06-20-01 FIG.4. Sheet 1 Page 8. Includes Test Report and Certificate of Conformance. DIMENSION: 120mm (L) x 50mm (W) x 6.35mm (T) Holes SIZE: Ø7.5, 7.93, 8.33, 8.7, 9.12, 9.5, 9.9, 10.3, 10.7, 11.1, 11.5, 11.9mm Hole Notch Configurations: • 1.5mm (L) x 0.76mm (D) x 0.12mm max width mid wall notch in hole (Qty 12) • 0.76mm x 0.76mm x 0.12mm max width corner notch in each hole (Qty 12) NOTE: For special alloy request by mail.