Aircraft Spruce
UD-3 Gas Cap
UD-3 Gas Cap
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The UD-3 flush fuel cap assembly is an unvented cap similar in design to the #5 style cap. The aluminum mounting ring has a 2" dia. opening and an overall dia. of 3-3/4 inch. It may be riveted, bolted or molded to the tank. It is currently used on many popular homebuilts such as the RVs, Lancair, Velocity & White Lightning. Specify flat or contoured adapter.
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