As mentioned over previous years the ASME Standard switch to bring both 300 & 600 together. Previously we have 2 part numbers for 300 and 600 respectively, however 3-4 years ago we changed both part numbers to be identical as our internal system and customer systems were used frequently. As you can see we have NO DIMENSIONS on the description and therefore expect manufacture to the latest ASME B16.20 standard.
The parts you manufacture are the same on BOTH part numbers, so please continue to manufacture 3/600 for all part numbers. The number is not a problem.