Julie,
I just did some comparisons with my 401A and the 7 drawer cabinet my #2 Singer 66 treadle is in. My 401A will fit just fine. I have two other electric machine cabinets and they fit the full size Singers so I'm positive the 401A will fit in them too.
The hinges line up right and there appears to be enough room for the machine to fold down. The bottom case on the machine would have to come off as that would interfere with the fit. The spring plate on the right side of the machine opening should probably be removed for underside clearance.
So, as I'm typing this I'm doing searches trying to find a pic of a 402A. So far no luck.
OK, I've looked as much as I can for now and have not found any pic of a 40
2A machine. The only pics I've found are from the Singer site:
{
http://www.singerco.com/uploads/down...stomatic-x.pdf }
and that machine resembles the Japanese machines more than it does Singers.
So, are you positive you have a Singer 402A?
When I get back from my errands I'll put my 401 into my spare treadle top and take pics of it.
Joe