Kintronic Labs part number RFC-03P, replacement silver plated spring finger contacts for the Kintronic Labs RFC-40.
Kintronic Labs part number RFC-03LP, replacement silver plated spring finger contacts for the Kintronic Labs RFC-80 RF contactors.
If you are replacing all of the contacts on a single pole 40 amp or 80 amp switch you will need quantity 4. If you are replacing all of the contacts on a double pole 40 amp or 80 amp switch you will need quantity 8.
Please note that when you are installing these in the RF contactor holder you will need to make minor adjustments to the fingers to ensure the contact bar makes good contact with the new fingers and the new fingers are not impeding the travel of the contact bar in and out of the contact spring fingers.