What the 1FK7042-2AF71-1FH0 is, and why it was specified
1FK7042-2AF71-1FH0 is a 1FK7 COMPACT synchronous servo motor from Siemens, the compact-format brushless servo used on SINAMICS S120 and similar drive lines where short stack length and high dynamic response matter more than the inertia class of the larger 1FK7 frames.
Sourcing reality under EOL
For a storeroom keeper this is the part of the page that matters: if the MRO list still names the 1FK7 compact family, every replacement has to be verified against the nameplate data, encoder variant, and brake option code on the existing motor, because the suffix string on this order code carries the shaft, holding brake, and connector configuration that no generic 1FK7 cross covers.