2X31-8181P2

31 material. Good for 1 to 300 MHz. Dimensions are in inches. Some typical impedances are listed for each part.

ID: 0.169
OD: 0.465
Height: 0.913
Ω @1 MHz: 12
Ω @10 MHz: 60
Ω @25 MHz: 90
Ω @100 MHz: 160
Ω @250 MHz: 183