I have a Rockwell router model 150M that I purchased almost 50 years ago. The motor cap disintegrated years ago, but was held together with duct tape. Deciding to finally replace it, I found out it is an obsolete part. Found a 88727 cap for a newer Porter Cable from Kauffman ( no one else had it) that actually fit perfectly except for longer #8x32 screws required. Ordered one day, shipped the next day and delivered the very next day.
Kauffman is always going to be my source for all my vintage power tools. The available selection and service is unparalleled!