| KNOB MANUFACTURER PART NUMBER | 8164-12Y |
| MOUNTING FACILITY CIRCLE RADIUS | 1.609 INCHES NOMINAL SINGLE MOUNTING FACILITY |
| MOUNTING FACILITY PATTERN | FOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTERACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| SHAFT DIAMETER | 0.375 INCHES NOMINAL SINGLE ACTUATOR |
| SHAFT FLAT/SLOT ANGULAR LOCATION | 180.0 DEGREES FROM NONTURN DEVICE SINGLE ACTUATOR |
| SHAFT TYPE | ROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR |
| SHAFT LENGTH | 0.875 INCHES NOMINAL SINGLE ACTUATOR |
| POLE QUANTITY | 1 EACH SECTION FRONT |
| SPECIAL FEATURES | SHAFT DRILLED PERPINDICULAR TO FLAT AND TAPPED 5-40 0.438 IN.FROM END OF SHAFT FOR PIN STYLE 1 MOUNTING 2 HOLES 0.312 IN. ON3.812 IN. MOUNTING CENTERS |
| THREAD QUANTITY PER INCH | 20 SINGLE MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UNC SINGLE MOUNTING FACILITY |
| THROW QUANTITY | 3 EACH SECTION FRONT |
| STYLE DESIGNATOR | TAP, CIRCUIT SELECTOR |
| SWITCH ACTUATOR INDEXING POSITION QUANTITY | 4 SINGLE ACTUATOR |
| SWITCH ACTUATOR MOMENTARY POSITION | CLOCKWISE SINGLE ACTUATOR |
| SWITCH ACTUATOR STOP DEVICE TYPE | ADJUSTABLE STOP SINGLE ACTUATOR |
| SWITCH ACTUATOR POSITIONING INCREMENT | 90.0 DEGREES SINGLE ACTUATOR |
| SWITCH CONTACT BASIC DESIGN | NONPILE-UP SYMMETRICAL |
| TERMINAL TYPE | TAB W/SCREW |
| CONTACT LOAD CURRENT RATING | 10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| CONTACT SWITCHING ACTION | BREAKS BEFORE MAKES EACH SECTION FRONT |
| CONTACT VOLTAGE RATING IN VOLTS | 125.0 AC AT SEA LEVEL |
| FEATURES PROVIDED | ACTUATOR KNOB |
| FIRST FLAT LENGTH | 0.500 INCHES NOMINAL SINGLE ACTUATOR |
| FLAT HEIGHT | 0.312 INCHES NOMINAL SINGLE ACTUATOR |
| INDIVIDUAL SECTION QUANTITY | 8 |
| NOMINAL THREAD SIZE | 0.250 INCHES SINGLE MOUNTING FACILITY |
| OVERALL HEIGHT | 2.875 INCHES NOMINAL |
| OVERALL LENGTH | 5.187 INCHES NOMINAL |
| OVERALL WIDTH | 4.375 INCHES NOMINAL |
| KNOB MANUFACTURER CODE | 82121 |