Considerations For Untreated Or Bare Dissimilar Metals; Figure B-1 Electrical Bonding Preparation - Nut Plate; Figure B-2 Electrical Bonding Preparation - Bolt/Nut Joint; Figure B-3 Electrical Bond Preparation - Terminal Lug - Garmin GTS 8 Series Maintenance Manual

B.1 Considerations for Untreated or Bare Dissimilar Metals
The correct material finish is important when mating untreated or bare dissimilar metals. Materials should
be galvanically-compatible. When corrosion protection is removed to make an electrical bond, any
exposed area after the bond is completed should be protected again. Additional guidance can be found in
AC 43.13-1B and SAE ARP 1870. Typical electrical bonding preparation examples are shown in
Figure B-1, Figure B-2, and Figure B-3.
LOCK WASHER
E-BOND PREP
FLAT WASHER
0.50
Figure B-1 Electrical Bonding Preparation – Nut Plate
LOCK WASHER
E-BOND PREP
FLAT WASHER
0.50
FLAT WASHER
E-BOND PREP
LOCK NUT
Figure B-2 Electrical Bonding Preparation – Bolt/Nut Joint
LOCK WASHER
FLAT WASHER
E-BOND PREP
0.50
FLAT WASHER
Figure B-3 Electrical Bond Preparation – Terminal Lug
190-01279-01 GTS 8XX Part 23 AML STC Maintenance Manual
Rev. 2 Page B-2