Re: Henry's 55 Constellation

Posted by HH56 On 2013/4/2 10:56:54

It appears to be 5/16-24 with a wide machined surface for the sealing washer and has a 1/2" hex. It may be special to the Carter pumps and will have to come from an old non-rebuildable unit. Didn't see a brass pipe fitting that small a thread or with that wide a sealing surface but didn't do much of a search either.