Part Details | ELECTRICAL TACHOMETER INDICATOR
6620-00-663-4275 An instrument which displays, in units of revolutions per minute, the transmitted rotational speed of a shaft for a specified elapsed time.
Alternate Parts: 981B4022, 981B4-022, 6620-00-663-4275, 00-663-4275, 6620006634275, 006634275
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-663-4275 | 08260 ( INDICATOR, ELECTRICAL TACHOMETER ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6620-00-663-4275
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 981B4-022 | 89944 | KOLLSMAN, INC. |
Technical Data | NSN 6620-00-663-4275
| Characteristic | Specifications |
|---|---|
| ELECTRICAL CONNECTION QUANTITY | 2 |
| ELECTRICAL CONNECTION IDENTIFYING NUMBER | PART NO. X-814-8-1 |
| PRESENTATION TYPE | SYNCHRO MOTOR |
| SCALE MARKING AND SURFACE FINISH | MINOR GRADUATION LUMINOUS AND MAJOR GRADUATION LUMINOUS AND MINOR GRADUATION LUMINOUS AND MAJOR GRADUATION LUMINOUS |
| INDIVIDUAL MARKING | MARKED W/STRAIGHT BLACK LINE IN CENTER; R |
| CURRENT TYPE | AC |
| CONTACT QUANTITY | 3 |
| CONTACT TYPE | PIN |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE |
| MOUNTING STUD DIAMETER | 0.1695 INCHES NOMINAL |
| WIDTH | 3.250 INCHES NOMINAL |
| HEIGHT | 3.250 INCHES NOMINAL |
| DEPTH | 5.250 INCHES NOMINAL |
| FSC APPLICATION DATA | ENGINE INSTRUMENT AIRCRAFT |