Summary Information (click on this NSN number for detailed information: 5340-00-003-4025)
Butt Hinge, also referenced with federal logistics item name code 22894:
A hinge usually with rectangularly shaped leaves. the dimension parallel to the hinge pin must be greater than the dimension transverse to the hinge pin. it may have a tension coil spring at its pivot(s) for closing action, and may have a third member between its pivot(s) to permit the door, or the like, to swing in an arc from either side.