Clausing 6900 series Left hand lead screw and nut replacement.

[Stephen S]

My Bad. In the original post I Clausing 6900 series. I apologize for the mistake.
The Clausing 6339 (6300 series)
The part #Q-551-S is the lead screw with Q-351 gear.
This is according to the manual I purchased from Clausing.

 

[G-ManBart]

My Bad. In the original post I Clausing 6900 series. I apologize for the mistake.
The Clausing 6339 (6300 series)
The part #Q-551-S is the lead screw with Q-351 gear.
This is according to the manual I purchased from Clausing.

Since it's LH, I'm assuming that's for the cross slide? I'm guessing the 4900-37 nut you found above was from an eBay listing by BMPartstech, right? If you read farther down, he mentions repairing worn screws...probably worth sending him a note.

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[Stephen S]

Yes, I read that. I have ordered the 4900-37 nut. Schedule to be received January 31, 2024. I will check the fit before asking him for a quote on the lead screw.