PeteN
Silver Member
I have this style of hydraulic hose fitting on a Titan implement and want to change out the hoses. I don't seem to be able to nail down exactly what form this is. I think it is using the NPSM thread form and seal but it doesn't match up with the specs I have found. The ID of the external threads is 0.635" and I haven't found a thread pitch gauge that fits exactly. 20 threads/in is close but so is 18 threads/in. A 5/8-18 nut will not thread on this fitting but is close. None of the metric thread gauges that I have are even close. Any insight on this?
Update: Looking through my Machinery's handbook I think there is a possibility that it is a British Standard Pipe Thread. There is a size with a 19 threads/inch thread pitch which would be just about right. Amazing they would make thread pitches so close together with different standards.
Update: Looking through my Machinery's handbook I think there is a possibility that it is a British Standard Pipe Thread. There is a size with a 19 threads/inch thread pitch which would be just about right. Amazing they would make thread pitches so close together with different standards.
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