Locate Replacement Button for Truth Casement Window Part Number 40359

A handy person from Boulder CO says:
August 20, 2017
I have casement windows that have Truth hardware. The casement operator arm is attached to the window with part shown in the attached pictures.

The 001 gif picture on the right shows the top view of the part. The hole in this part has a "Button" that be "PRY[ed] TO REMOVE OPERATOR". The top view of this Button is shown on the left.

The 002 gif picture on the right shows the bottom of this part with "40359" clearly stamped. The 3 holes are used to attach this part to the window. The profile view of the Button is shown on the left. Towards the top of the Button, there is a protrusion which is a flexible split ring spring which is used to keep the Button in place when it is inserted into the hole in part 40359 and through the end hole of the operator.

I have lost a Button and would like to find a replacement or 2.
User submitted photos of window hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
August 24, 2017
Thanks for sending us your photos. Take a look at the 39-546 with the "snap-stud." I'm not really sure if this will work on your window. If you can send us some photos of the operator itself that could help us identify the parts needed.
A handy person from Boulder CO says:
August 24, 2017
The operator has "TRUTH" and the number "30905" stamped on it.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
August 29, 2017
I'm afraid that information alone doesn't help. We need pictures of the rest of the mechanism, preferably out of the window.
Truth Snap-Stud Bracket
Truth Snap-Stud Bracket
39-546
$3.22
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