I think 55-181 is the bean in need. Please let me know.
Attached is measurements of the glass bead.
Thank you,
Pat
Dave Sr. from SWISCO responded:
November 28, 2016
The 55-181 is the closest glazing bead we carry. The top or head of the 55-181 is not squared off exactly like the one you show in you photo, but I think it still might work on your sash. See what you think!