length of arm

A home owner from rhode island says:
The 39-187 looks like the operator I need. however, I have a 4.5 inch arm. will this work?
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Dave Sr. from SWISCO responded:
Looking at the 39-187, the full arm length is 5" end to end. However, the measurements from the center of the rivet to the center of the hole is 4 1/2". Maybe that is what you measured?
A home owner from rhode island says:
Definately 4.5 inch end to end what do you think?
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Very unusual! Can you send us a photo? We would like to see it in a photo with dimensions if you can.
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