Notes: Size 0.010in Material Grade Premium Material UCR-Carbon Steel; LCR-Ductile Iron; OCR-Stainless Steel Facing UCR-Plasma-Moly; OCR-Chrome Axial Height UCR-2.3mm; LCR-2.0mm; OCR-3.44mm Ring Type UCR:RFK-13PF; LCR:RBT-17; OCR: GCL-40URW Engine Set (6.0 V8)