| ADJUSTABILITY | ADJUSTABLE |
| ADJUSTABLE CHARACTERISTICS | DEG OF PITCH OR TRUE VIALS |
| DEPARTURE FROM CITED DOCUMENT | FIG. 18 |
| DESIGN TYPE | DOUBLE FACE |
| MATERIAL | IRON CAST AND ALUMINUM ALLOY |
| NONDEFINITIVE SPEC/STD DATA | 18 FIGURE AND 5 TYPE |
| OVERALL OUTSIDE DIMENSIONS | 10 IN. LG O/A |
| VIAL ARRANGEMENT | SINGLE BUBBLE |
| VIAL ARRANGEMENT | PAIRS OR SINGLE CROSS LEVEL |
| VIAL GRADUATION VALUE | 0.062 IN. PER FT |
| VIAL GRADUATIONS | INCLUDED BUBBLE |
| VIAL GRADUATIONS | NOT INCLUDED CROSS LEVEL |
| VIAL QUANTITY | 5 LOCATION NOT OTHERWISE SPECIFIED |
| VIAL SURFACE FINISH | UNGROUND LOCATION NOT OTHERWISE SPECIFIED |
| VIAL TYPE | INCLINE LEVEL OR LEVEL CROSS LEVEL |
| VIAL TYPE | INCLINE LEVEL BUBBLE |