Window Sash Pivot

We have some older double-hung tilt-in windows. Most work perfectly. One is in need of new hardware all around. Pivot shoe, spiral balance, and pivot rod. I found everything on your site easily except for the pivot bars/sash pivots (not clear on proper name in my case). The attached pictures are of them removed. It has very similar dimensions to multiple parts on your side, but nothing that's an exact match. I'm hoping you can provide me with a good replacement.
The label on the window says Nu-View. We live in St Louis so I'd imagine it's an old reseller. This is for the bottom pane. It weighs about 28lbs. The twist balances are 24" long and 5/8" diameter so I was going with the 600 series. The pivot shoes are a little bigger than a half inch so I was going to order the 17/32.
Any help is appreciated.
Great site btw. I ran a web shop for 15 years so it's always satisfying to find a site that makes things easy to find and is extremely informative. I had no idea what most of these parts were called. I got into a real bind when trying to remove the pivot shoe and your video helped immensely. Well done to all involved!
 

I came across those and they seemed to be the closest match. I imagine as long as there's enough of the window below the bar and pivot I should be fine right? If so I believe these will do the trick. 
thanks for the fast reply I wasn't expecting to hear back until tomorrow at the earliest. 
going to place my order now.