Halfnuts - Identify?

[CCWKen]

Anyone know what these halfnuts might go to? They are Large!

[BillH]

Hmm, I dont know, IOWolf seams a half nut short

[rockrat]

Oh no, here we go.

[PolskiFran]

What size is the lead screw that it would fit? What are the casting marks? My Nebel lathe has large half nuts and very large half nut operating lever.

Frank

[This message has been edited by PolskiFran (edited 08-19-2005).]

[CCWKen]

I think these are 1" 6tpi but I'm not for sure. I'll have to get the dimensions and marks tomorrow. What casting marks there are, are shown in the first picture. I just can't make them out now either. They're NOS but don't fit anything I have.

[beckley23]

I think they are South Bend, most likely a 16".
Harry