The customer wants to know if our material meets that spec, but they don't have a copy of it. The print they sent to us states "Plastic Spec: ESEJ7B-1298-AA". I have access to all of the latest automotive and plastics specifications, but I didn't find this on any search.
It looks similar to some older Ford specifications that I found on Google, so I'm thinking this spec became obsolete at some time or was superseded by some newer specification.