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dsc83790.jpg

A label taped to the injector handling fixture. It reads


Joint O-16, O-17, F-11

Injector

P/N: 209641


Partially cut off at the top of the photo is one of the injector's index holes.

The F-1 injector is indexed via two pins, one round and one diamond shaped, which fit into two index holes located 180° apart to ensure that the injector is installed in the proper orientation.

Both index holes are round, although they are different sizes. I believe that the diamond-shaped index pin has a larger diameter.

This index hole is noticeably larger than the other outer-dome attach bolt holes (and so I believe it is for the diamond-shaped index pin).

 
Injector at F-1 Engine Disassembly
Time picture taken Thu Jul 19 09:48:54 2012
Location picture taken Building 4205
Marshall Space Flight Center
Huntsville, AL
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