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  • Users: izzy123
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  1. izzy123

    PTF-SAE Short Thread

    Is a PTF-SAE Short thread the same as an NPT thread, but a dry seal variation? We are in a mechanical/hydraulics industry and we constantly use NPT, UNO, BSPP and BSPT threads but have not come across PTF-SAE short. I was wondering if they are compatable (ie: can you screw a PTF-SAE short male...
  2. izzy123

    Material Properties 4140/SPS

    I have a Canadian drawing that specifies the material to be 4140/sps. I am in Australia and we are manufacturing the component and were wondering what the sps refers to. Our 4140 grades are only single digit letters, ie: 4140 T. Can anyone help?

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