A quick learner from california says:
August 24, 2015
Hello, can you guys help me I found a hinge with the number 31133 I'm looking to find these exact parts
Tom from SWISCO responded:
August 26, 2015
Thanks for posting. To start out with, see our 36-013-10 hinge. I think this may be a match for what you need. As for the operators, it appears you have two types. The one I see in the second picture appears similar to our 39-091 and 39-092. You may also require the 39-522 bracket if you cannot reuse your old one. In the third picture, I see an operator that looks like our 39-031 and 39-032. Let me know if you agree.