Materials:

Shielded Housing: Extruded Aluminum, Alloy 6063-T5
Finish: None
Cover: 2 each, 2.03 (.080) thick Aluminum, Alloy #1100-H14
Finish: Clear anodized per MIL-A-8625
Cover Screws: 16 each #4-40 x 6.35 (1/4”) Flat head, carbon steel with blue zinc plating.

Ratings:

Operating Temperature: -55°C to +150°C (-67°F to +302°F)
Noise Rejection: Greater than 70 dB.