|Manufacturer||Von Duprin Exit Devices|
The Von Duprin 55 Hinge Case Spring 090052 is the spring in the inactive case. This spring does all of the lifting of the cross bar, and is used on the 55 Rim, 5547 Concealed Vertical Rod and 5575 Mortise Device. It measures 1-5/8" long by 5/8" diameter.
Von Duprin part # 090052