Old bifold Door top pivot bracket

A home owner from Wheeling says:
June 12, 2021
Trying to locate replacement for top pivot bracket for old bifold door. Plastic piece has ID NUMBER OF 150-6 A. Fits into a smaller track to hold in place. The track is 5/8 at the widest part and 1/2 inch for the slide in piece to hold in place.
Any help would be appreciated. All the new tracks and hardware are for 7/8 inch. I prefer not to replace the doors or track.
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Bob from SWISCO responded:
June 16, 2021

Hello there. I don't recognize this part at first glance, but I think we may be able to help. Was there any pin that fit into this pivot? If so, can you tell us its diameter? In the time being I will research this with my senior colleagues, and we will get back to you as soon as possible. Many thanks for your patience. 
A home owner from Wheeling says:
June 17, 2021
Thank you so much for your reply. I am stumped on trying to replace these top pivot brackets. Here is a picture of them in place. 1/4 inch pin
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Paul from SWISCO responded:
June 18, 2021

Your plastic track seems to be a copy of our 23-509, except our track is one inch wider. The top pivot pin looks like our 23-115 with a 1/4" tip. The top spring loaded guide that goes with our track is the 23-120 with a 7/8" nylon wheel. I know you don't want to replace the track, but I can't see any other way out, unfortunately.
Top Roller Guide
Top Roller Guide
23-120
$1.97
Spring Loaded Top Pivot
Spring Loaded Top Pivot
23-115
$1.77
BiFold Track with Pivot Bracket, 6' Open
BiFold Track with Pivot Bracket, 6' Open
23-512
$10.97
Bifold Track with Pivot Bracket, 30" Open
Bifold Track with Pivot Bracket, 30" Open
23-520
$5.77
Bifold Track with Pivot Bracket, 3' Open
Bifold Track with Pivot Bracket, 3' Open
23-509
$7.10
Bi-fold Door Repairs
Bi-fold Door Repairs
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