Glazing identification

Hello, I recently purchased a home built in 1966 with a room addition in the 70s. I have many windows where the snap in glazing is damaged. Attached are some photos both on and off the windows.

Please help identify a suitable replacement. The part is 1/2" wide, 5/16" tall, with a 1/16" lip.

Thank you,
Rick R

Thank you, I will try those.