My boss ordered two tanks that have no plates on them indicating their ratings (MAWP, temps, jacket ratings, etc.). They were purchased used in Nevada and the guy he bought them from doesn't have the paperwork as to where he got them, what they were used for, or what the ratings were on them...
This is actually for a Lightnin mixer shaft rather than a pump shaft but it is the same concept.
We have a 1 1/2" Lightning mixer shaft with a set of braided square packing rings. We also bought a plastic lantern ring for $200.00. Recently, my boss found a brass lantern ring for $1,000.00...