| KNOB MANUFACTURER PART NUMBER | A |
| INDIVIDUAL SECTION QUANTITY | 6 |
| PROPRIETARY CHARACTERISTICS | PACS |
| MOUNTING FACILITY CIRCLE RADIUS | 1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY |
| MOUNTING FACILITY PATTERN | FOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY |
| MOUNTING METHOD | BRACKET SINGLE MOUNTING FACILITY AND THREADED HOLE SINGLE MOUNTING FACILITY |
| NOMINAL THREAD SIZE | 0.190 INCHES SINGLE MOUNTING FACILITY |
| OVERALL HEIGHT | 2.500 INCHES NOMINAL |
| OVERALL LENGTH | 4.000 INCHES NOMINAL |
| OVERALL WIDTH | 2.438 INCHES NOMINAL |
| SPECIAL FEATURES | COMBINATION OF MAKE BEFORE BREAK AND BREAK BEFORE MAKE CONTACT ACTION |
| STYLE DESIGNATOR | TAP, CIRCUIT SELECTOR |
| SWITCH ACTUATOR INDEXING POSITION QUANTITY | 3 SINGLE ACTUATOR |
| SWITCH ACTUATOR POSITIONING INCREMENT | 90.0 DEGREES SINGLE ACTUATOR |
| SWITCH ACTUATOR STOP DEVICE TYPE | FIXED STOP SINGLE ACTUATOR |
| SWITCH CONTACT BASIC DESIGN | NONPILE-UP NONSYMMETRICAL |
| TERMINAL TYPE | TAB W/SCREW |
| THREAD CLASS | 2B SINGLE MOUNTING FACILITY |
| THREAD QUANTITY PER INCH | 24 SINGLE MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UNC SINGLE MOUNTING FACILITY |
| CONTACT LOAD CURRENT RATING | 20.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| CONTACT VOLTAGE RATING IN VOLTS | 600.0 AC AT SEA LEVEL |
| FEATURES PROVIDED | ACTUATOR KNOB |
| HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION | EXPLOSION PROOF |
| KNOB MANUFACTURER CODE | 82121 |