| KNOB PURPOSE | FOR SETTING BAROMETRIC SCALE |
| KNOB QUANTITY | 1 |
| OVERALL DEPTH | 4.891 INCHES NOMINAL |
| OVERALL HEIGHT | 3.250 INCHES NOMINAL |
| OVERALL WIDTH | 3.250 INCHES NOMINAL |
| MECHANICAL CONNECTION QUANTITY | 1 |
| MECHANICAL CONNECTION SIZE | 7/16 IN. -20 THD |
| MECHANICAL CONNECTION TYPE | INTERNAL TUBE |
| MOUNTING METHOD | THREADED BEZEL |
| POINTER FINISH | FLUORESCENT AND NONLUMINOUS |
| POINTER QUANTITY | 3 |
| SCALE NAME | BAROMETRIC PRESSURE AND ALTITUDE |
| SCALE QUANTITY | 2 |
| SCALE MARKING TRANSPARENCY | FLUORESCENT |
| SCALE MARKING | LETTERS AND NUMERALS AND LINED INCREMENTS |
| SCALE SMALLEST INCREMENT GRADUATION | 0.02 IN.; 50 FT |