First digit 5 ​​in the model number

If that's the first character, that unit was refurbished by someone other than Apple in an Apple-approved program. Otherwise, it's just part of the model number; nobody on these boards will know why Apple picked it.

(262045)

“First digit 5 ​​in the model number: What does the first digit 5 ​​in the model number mean?”

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Please Clarify:

Why do you ask? Anything of concern or suspicion here?