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IFD5XX Installation Manual
600-00299-000
Page 126 of 198
Revision: 02
Fuselage Skin
Thickness
Adjacent Structure
‡
Rivet Type
Doubler
Thickness
Outer Rivet Row in
Doubler
Inner Four Rivet in
Doubler
0.016" - 0.025"
Dimpled skin /
Countersunk Rivets
0.020"
MS20426AD3
(Double Dimple)
MS20426AD3
(Double Dimple)
0.016" - 0.025"
Protruding Head
Rivets
0.020"
MS20470AD3
MS20426AD3
(Double Dimple)
0.032" - 0.025"
Countersunk Skin /
Countersunk Rivets
0.032"
NAS1097AD4
(Countersunk)
NAS1097AD4
(Countersunk)
0.032" - 0.050"
Protruding Head
Rivets
0.032"
MS20470AD4
NAS1097AD4
(Countersunk)
Table 93: Rivet/ Doubler Selection
‡
Rivet type is dependent on the type of rivets in the adjacent fuselage structure.
If the adjacent rivets in the structure around the bay selected for the doubler
installation are protruding head type, install MS20470AD rivets in the outer
row of the doubler. If the adjacent rivets are countersunk or dimpled, install
either MS20426AD or NAS1097AD rivets per the table above.
Figure C - 36: GPS Antenna Doubler Installation
Summary of Contents for IFD540
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