The item is composed of acrylic plastic, meeting the requirements outlined in MIL-P-5425, with a finish consistent with QQ-P-416 Type II, Class 2. The window must withstand a load of 5.0 pounds for 30 seconds without detaching from the panel.
AGAV
END ITEM IDENTIFICATION
The end item is identified as AN/ASG-30, an optical sight system designed for lead computing purposes.