dsc11354.jpg

Detail of the closure on the low-pressure fuel turbopump inlet.

The empty hole near the top is for a desiccant indicator; the white label under it reads "Change Desiccant when <symbol> is pink" and "Do not remove plug" (someone apparently failed to read this portion of the sticker :-)

The closure's part number, visible just above the red "Rockwell International Rocketdyne Division" sticker near the bottom, is "RK395-44112-001".

The white sticker at lower left reads "Do not destroy/Rockwell International."