I would not mess with old air compressor parts. Get a new valve unit with the regulator, switch, check valve, and unloader and be safe.
Name brand switch and regulator - $42.
https://www.zoro.com/campbell-hausfeld-pressure-switch-cw209300av/i/G5361291/?gclid=CMDZ1KSzgdMCFV61wAodCUwIXw&gclsrc=aw.ds
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Last edited by wdfifteen; 03-31-2017 at 11:45 AM..
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