I have the same machine. Poured out of Meehanite grey iron, good Taiwan mill. Many of the parts are exactly like a bridgeport clone even though it is a square head, but many are NOT the same. I have a copy of the original manual but it is really badly written.
Here are the non-R8 part numbers and descriptions exactly as written.
1/2-12W (standard), p/n FA-213C;
1/2-13UNC (option), FA-213E;
The company is now called YCI industries and is on the net.
I don't know if the bars and spindles are the same as bridgeport, but it is a good gamble.