Materials:

Body: Gold Plated Beryllium Copper per QQ-C-530, Cond. HT.
Center Contact (Female): Gold Plated Beryllium Copper per QQ-C-530, Cond. HT
Insulation: Teflon per L-P-403.
Finish:
Body and Contact: Gold plate per MIL-G-45204, Type II, Class 2.

Ratings:

Operating Temperature: -65°C. (-85°F.) to +165°C. (+329°F.)
Operating Voltage: 1000 VRMS, 60 Hz at sea level
Insulation Resistance: 5000 Megohms Min.
Frequency Range: 0-12.4 GHz.