Top Pivot Guide, 7/16" Diameter

Can you help me identify this part?

looking for a couple of parts, information that I gathered from the top pivot Guide,the spring loaded one has a pat. No. 3397790 and Pat.Can. 1970. The parts that I'm looking for are the ones on the picture d and e. or other parts that will do the same job.The one on the picture d runs free on the s ... (cont.)

I was very pleased to find your website. I have an old 48" set of 4 lovered closet doors that I purchased from Home Depot approximately 35 years ago, however they have discontinued that size as well as parts. The doors themselves are in pretty good shape except for some nicks and scratches. The doo ... (cont.)

My best guess on the originaal install on these would've ben early to mid 80s. This is from a heavy metal bi-fold door. Barrel is 3/4", pin is 1/2". Not sure what size that end cap is supposed to be. It's very well worn. No names numbers or markings on the pin, door, etc. Sorry, they were alread ... (cont.)

Need Hardware as shown in the pics for the door