| ELECTRICAL CONNECTION QUANTITY | 1 |
| ELECTRICAL CONNECTION IDENTIFYING NUMBER | DWG NO. AND10066-10SL-3P |
| ACCURACY RATING | 100.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE |
| SCALE MARKING AND SURFACE FINISH | MAJOR GRADUATION LUMINOUS AND |
| MINOR GRADUATION LUMINOUS |
| SCALE RANGE | 500.0 TO 4000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE |
| POINTER TYPE | CLOCK-HAND SINGLE POINTER |
| POINTER FINISH | LUMINOUS SINGLE POINTER |
| CURRENT TYPE | AC |
| CONTACT QUANTITY | 3 |
| CONTACT TYPE | PIN |
| DEPTH | 4.250 INCHES NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | ERU-4/A TYPE |
| FSC APPLICATION DATA | ENGINE INSTRUMENT AIRCRAFT |
| SPEC/STD CONTROLLING DATA | |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | ERU4A |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILI25689 |