A comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. It must have drilled and/or tapped holes for mounting purposes. Excludes:end bell, electrical rotating equipment.
2.4409 inches minimum and 2.4414 inches maximum aperture diameter, acft eng f-101 end item identification, 2.5895 inches minimum and 2.5900 inches maximum outside diameter, 2.180 inches minimum and 2.190 inches maximum counterbore diameter, 26.0 rockwell c minimum and 32.0 rockwell c maximum hardness rating