Exterior motor code

[Fordean]

I have a exterior motor. No covering
6K123BB
New motor says only 6k123
What number designation. Says for exterior use.?

 

[augie47]

The TEFC denotes it o.k. for normal outdoor use
(Totally enclosed-fan cooled)

 

[kwired]

I wouldn't look too hard at model number on Dayton to mean anything unique about the item. It is basically a Grainger item number and they have thousands of item numbers covering many categories. There may be meaning behind those numbers but they don't publish it AFAIK. Products they do sell that are not sold under a private label name (like Dayton) have their own manufacturer model numbers that do coincide with the manufacturers catalogs, but Grainger still gives them their own internal item number and it usually looks very similar to the one for OP's model here in the way it is formatted.