| SCALE TYPE | METAL |
| SCALE MEASUREMENT RANGE | 20.000 TO 180.000 DEG FAHRENHEIT |
| MATERIAL | BRASS OR |
| IRON MALLEABLE OR |
| STEEL OR |
| ALUMINUM ALLOY METER CASE |
| SURFACE TREATMENT | ENAMEL METER CASE |
| STEM LENGTH | 5.250 INCHES NOMINAL |
| SEPARABLE SOCKET STYLE | PLAIN SOCKET |
| BULB TIP OUTSIDE DIAMETER | 0.625 INCHES NOMINAL |
| SOCKET OVERALL LENGTH | 5.813 INCHES NOMINAL |
| TIP LENGTH | 4.000 INCHES NOMINAL |
| EXTERNAL THREAD SIZE | 3/4 IN. NPT |
| INTERNAL THREAD SIZE | 1-1/4 IN. - 18 NEF-2 |
| ACTUATING MEDIUM | MERCURY |
| DESIGN TYPE | FLUCTUATING |
| FEATURES PROVIDED | LENS MAGNIFYING FRONT AND |
| EXPANSION CHAMBER |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND |
| 3 CLASS AND |
| B RANGE AND |
| 3 STYLE AND |
| B FORM |
| SCALE INSCRIPTION/BACKGROUND COLOR | BLACK MARKING ON SILVER BACKGROUND |
| SCALE SMALLEST INCREMENT | 2.0 DEG FAHRENHEIT |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | GGT321 |