| KNOB PURPOSE | SETTING BAROMETRIC SCALE |
| KNOB QUANTITY | 1 |
| OVERALL DEPTH | 4.512 INCHES MINIMUM AND 4.637 INCHES MAXIMUM |
| OVERALL HEIGHT | 3.250 INCHES NOMINAL |
| OVERALL WIDTH | 3.250 INCHES NOMINAL |
| MECHANICAL CONNECTION QUANTITY | 1 |
| MECHANICAL CONNECTION SIZE | 1/8 IN. |
| MECHANICAL CONNECTION TYPE | INTERNAL PIPE |
| MOUNTING METHOD | PANEL |
| NONLUMINOUS SCALE MARKING AND COLOR | LETTERS WHITE AND LINED INCREMENTS WHITE AND NUMERALS WHITE |
| POINTER FINISH | NONLUMINOUS |
| POINTER QUANTITY | 3 AND 1 |
| SCALE MARKING AND SURFACE FINISH | LETTERS NONLUMINOUS AND NUMERALS NONLUMINOUS AND LINED INCREMENTS NONLUMINOUS |
| SCALE NAME | ALTITUDE AND BAROMETRIC PRESSURE |
| SCALE QUANTITY | 4 |
| SCALE SMALLEST INCREMENT GRADUATION | 20 FT,200 FT,2000 FT,0.02 IN. MERCURY |