A-5150653Trans Disc: 11", feramic, rigid, captive
A-5162898Trans Disc: 11", feramic, spring loaded
A-5171053Trans Disc: 11", organic, solid, captive
A-72093924Trans Disc: 11", organic, solid, captive
A-5144740Trans Disc: 12.25", feramic, rigid, incl w/ pressure plate