Parts Identification -- Sliding Window Roller/Guide for 1960s Aluminum Windows

Hi SWISCO team,
I'm looking to identify and purchase replacement sliding window roller/guide housings for a 1960s-era "dingbat" apartment building with aluminum sliding windows in Southern California.
The part is a small nylon/plastic roller housing clip that sits in the bottom track of the sliding window sash.
Caliper measurements:

Width: ~0.550"
Depth: ~0.470"
Smaller channel dimension: ~0.315"
Overall height: ~0.850"

I've attached photos of the part from multiple angles along with caliper measurements. No visible manufacturer markings on the window frames.
I need to replace several of these across multiple windows. Could you help identify this part and point me to the right replacement?
Thanks, Christian

Thank you Paul! I'll check it out.