need to replace P4601 window arm crank

A home owner from Evergreen, Colorado says:
November 4, 2021
Not the entire assembly, just the arm crank. It appears to be a 5/16 hex, but it is stripped.

Almond/beige color
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Tom from SWISCO responded:
November 8, 2021

That number is sometimes associated with the 39-091 and 39-092 ROTO brand operators. Could these be what you want? They also have 5/16" hex splines so I think so, but check them out and let me know if you had any questions.
ROTO Casement Operator
ROTO Casement Operator
39-091
$67.93
ROTO Casement Operator
ROTO Casement Operator
39-092
$67.93
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