Part Number: 139988-01 (Potentiometer) Part Number: 139989 (Body) Part Number: 139989501 (Komtech) Part Number: 13999 (Bearing) Part Number: 139990 (Sleeve) Part Number: 1399-902B (Flange assy) Part Number: 13999-03011 (Seat valve) Part Number: 13999-06 (Window dial) Part Number: 139992 (Component) Part Number: 139992-005 (3com corporation) Part Number: 13999-30 (Valve poppet) Part Number: 1399933 (Cap) Part Number: 139994-4 (Relay pnematic) Part Number: 139994FTS2500 (Harris)