Hey Ron,
Close.
There are 4 components to this "pin".
- The 507077 that you linked to, which is the only piece still available. Which is good, because on 5 of these machines I've had to replace 6 of those pins.
- The mystery "pads" that hold the pins about 3/8" from the base of the lid, so the base of that pin sits flush
- There's a flat washer that attaches underneath the plate
- Then a retaining ring, like the one that holds the stitch chart onto the lid.
This is actually my only complaint about the entire machine. Those pins are so frustrating to change and seem unnecessarily complex.
The pads can be simulated by using a 45780 Rubber bed cushion from the 221 / 222/ 301. It's a tight fit, and it sits ever so slightly above the top of the lip of the cover.