Unfortunately we do not have a cross reference between the two gas spring brands. I believe they may be replacements as some of our customers have said if you match up the numbers like on yours the 5300-40, they are a direct replacement, but have also heard from some that they may not be direct replacements. You will want to double check the extension, compression and force you need before. Below are the specs. on the GSNI-3200-40.
- Force (lb): 40
- EL - Extended Length (in): 20
- Compressed Length (in): 11.41
- S - Stroke (in): 8.59
- D - Rod Diameter (mm): 6
- Tube Diameter (mm): 15