| ACTUATING MEDIUM | MERCURYMERCURY |
| BULB TIP OUTSIDE DIAMETER | 0.625 INCHES NOMINAL0.625 INCHES NOMINAL |
| DESIGN TYPE | FLUCTUATINGFLUCTUATING |
| EXTERNAL THREAD SIZE | 3/4 IN. NPT3/4 IN. NPT |
| FEATURES PROVIDED | LENS MAGNIFYING FRONT AND LENS MAGNIFYING FRONT AND EXPANSION CHAMBEREXPANSION CHAMBER |
| INTERNAL THREAD SIZE | 1-1/4 IN. - 18 NEF-21-1/4 IN. - 18 NEF-2 |
| MATERIAL | BRASS OR IRON MALLEABLE OR STEEL OR ALUMINUM ALLOY METER CASE |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 3 CLASS AND 1 STYLE AND B FORM |
| SOCKET OVERALL LENGTH | 4.375 INCHES NOMINAL4.375 INCHES NOMINAL |
| SCALE INSCRIPTION/BACKGROUND COLOR | BLACK MARKING ON SILVER BACKGROUNDBLACK MARKING ON SILVER BACKGROUND |
| SCALE SMALLEST INCREMENT | 2.0 DEG FAHRENHEIT2.0 DEG FAHRENHEIT |
| SCALE TYPE | METALMETAL |
| SEPARABLE SOCKET STYLE | PLAIN SOCKETPLAIN SOCKET |
| STEM LENGTH | 3.625 INCHES NOMINAL3.625 INCHES NOMINAL |
| SURFACE TREATMENT | ENAMEL METER CASE |
| TIP LENGTH | 2.563 INCHES NOMINAL2.563 INCHES NOMINAL |