NSN 6620-01-278-8028
Part Details | ELECTRICAL TACHOMETER INDICATOR
6620-01-278-8028 An instrument which displays, in units of revolutions per minute, the transmitted rotational speed of a shaft for a specified elapsed time.
Alternate Parts: SELC29K, SEL-C29K, 45850035502, 458-50035-502, 6620-01-278-8028, 01-278-8028, 6620012788028, 012788028
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | MAY 10, 1988 | 01-278-8028 | 08260 ( INDICATOR, ELECTRICAL TACHOMETER ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6620-01-278-8028
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SEL-C29K | 61349 | AMETEK, INC.DIV AEROSPACE & DEFENSE |
| 458-50035-502 | 82918 | BOEING COMPANY, THEDBA BOEING |
Technical Data | NSN 6620-01-278-8028
| Characteristic | Specifications |
|---|---|
| ELECTRICAL CONNECTION QUANTITY | 1 |
| ELECTRICAL CONNECTION IDENTIFYING NUMBER | TO MATE WITH MS27484T12F98S |
| PRESENTATION TYPE | DIAL AND DIGITAL DISPLAY |
| DISPLAY TYPE | LIQUID CRYSTAL |
| DISPLAY DIGIT QUANTITY | 4 |
| INDIVIDUAL MARKING | N2 % RPM; GREEN BAND 89 TO 95%; RED RADIAL MARKING AT 105% |
| CURRENT TYPE | AC/DC |
| DC VOLTAGE RATING | 24.0 VOLTS NOMINAL |
| AC VOLTAGE RATING | 5.0 VOLTS NOMINAL |
| CONTACT QUANTITY | 10 |
| LENGTH | 9.000 INCHES NOMINAL |
| DIAMETER | 1.930 INCHES MINIMUM AND 1.940 INCHES MAXIMUM |
| SPECIAL FEATURES | INDICATES ENGINE FAN SPEED; VACUUM SEALED 2 IN. CAN ASSEMBLY; WEIGHT NOT TO EXCEED 2.5LBS; WHITE LIGHTED; DIGITAL DISPLAY NOT REQUIRED TO FUNCTION AFTER AN EMP EVENT, DAIL & POINTER ARE REQUIRED TO FUNTION;AFT95 |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY REPAIR PARTS |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| END ITEM IDENTIFICATION | KC135R |
| SUPPLEMENTARY FEATURES | TECH ORDER1C-135(K)R-4-4 FIG 2; PART OF THE PILOT/COPILOT FORWARD PANEL P/N 458-50046-508 AND -513 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | N2 TACHOMETER INDICATOR |