Part Number: 1-227879-1 (Component) Part Number: 1227883 (No description) Part Number: 1227887 (Adc) Part Number: 1227890000 (Weidmuller) Part Number: 12278901 (Eyepiece) Part Number: 12278902 (Mirror) Part Number: 12278904 (Headrest,optical in) Part Number: 12278906 (Adapter) Part Number: 12278907 (Wiring harness) Part Number: 12278908 (Eyepiece assembly) Part Number: 12278909 (Eyepiece) Part Number: 122789-1 (Fsc) Part Number: 12278910 (Hardware) Part Number: 12278911 (Eyepiece assy)