Identifying the motor on the line
The Siemens 1FK7042-5AF71-1FH5 sits in the 1FK7 compact synchronous family under the Motors & Motor Controls category, with the Servo Motors sub-classification placing it alongside other low-inertia 1FK7 siblings used in positioning axes and small-format feed drives.
Lifecycle read and spare-crate posture
With no official second-source or successor part number carried in the record, the only safe path is to lock the BOM line to the exact 1FK7042-5AF71-1FH5 designation and quote against an RFQ — same part code, traceable packaging, confirmed at quote time rather than promised on a stock ticker.