NSN 6620-00-479-9425

Part Details | ELECTRICAL TACHOMETER INDICATOR

6620-00-479-9425 An instrument which displays, in units of revolutions per minute, the transmitted rotational speed of a shaft for a specified elapsed time.

Alternate Parts: SCD7040B, SCD7040, 6620-00-479-9425, 00-479-9425, 6620004799425, 004799425

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66AUG 26, 197000-479-942508260 ( INDICATOR, ELECTRICAL TACHOMETER )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6620-00-479-9425
Part Number Cage Code Manufacturer
SCD7040B04984CELTECH CORPORATIONDBA SPACE DIVISION
SCD704004984CELTECH CORPORATIONDBA SPACE DIVISION
Technical Data | NSN 6620-00-479-9425
Characteristic Specifications
ELECTRICAL CONNECTION QUANTITY1
ELECTRICAL CONNECTION IDENTIFYING NUMBERMS3102E-14S-7P
PRESENTATION TYPE DIAL AND DIGITAL DISPLAY
CURRENT TYPE AC
AC VOLTAGE RATING105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM
FREQUENCY RATING60.0 HERTZ NOMINAL
CONTACT QUANTITY7
CONTACT TYPE PIN
LENGTH12.000 INCHES NOMINAL
WIDTH6.100 INCHES NOMINAL
HEIGHT6.200 INCHES NOMINAL
SPECIAL FEATURESRANGES: 0-70,000 RPM DIGITAL, 0-130.0% RPM DIGITAL AND 0-125% RPM ANALOG; ACCURACY DIGITAL +/- 0.4% OF READING AND ANALOG +/- 1.0% FULL SCALE; READOUT LIGHT DISPLAY, DIGITAL; INPUT SIGNAL TACH GENERATOR MIL-G-9398 ROTATES AT 4200 RPM = 70 CPS WHEN ENGINE IS AT 100% ROTOR SPEED; SAMPLING RATE 0.2 -3 SECONDS
END ITEM IDENTIFICATIONA/M37T ENGINE TEST STAND
SUPPLEMENTARY FEATUREST.O. 33D4-6-212-41
PART NAME ASSIGNED BY CONTROLLING AGENCYSPEED INDICATOR