Part Number: 114-550085-1 (Plenum-heat & vent-cabin environ) Part Number: 114-550087-5 (Bracket) Part Number: 114-550088-1 (Duct assy-plumbing inst-environm) Part Number: 114-550091-1 (Sleeve assem-press b) Part Number: 114-550092-1 (Sleeve-pressure barrier-environm) Part Number: 114-550092-3 (Sleeve-pressure barrier-environm) Part Number: 114-550095-5 (Bearing) Part Number: 114-550096-1 (Flapper assy-valve assy-heat & v) Part Number: 114-550097-1 (Shaft assembly - valve heat and ) Part Number: 114-550097-3 (Shaft-valve assy-heat & vent-cab) Part Number: 114-550097-5 (Arm shaft heat and vent) Part Number: 1145-50-1 (Spring) Part Number: 114-550101-1 (Plenum) Part Number: 114-550101-11 (Flange-plenum assy- cockpit heat)