6620-01-278-8027 INDICATOR,RATE OF FLOW Index 2990-01-278-8029 MUFFLER,EXHAUST

National Stock Number:
6620-01-278-8028

Federal Supply Class:
6620

National Item Identification Number:
012788028

Description:
INDICATOR,ELECTRICAL TACHOMETER

Detail:
An instrument which displays, in units of revolutions per minute, the transmitted rotational speed of a shaft for a specified elapsed time.


Manufacturer Information:
458-50035-50282918THE BOEING COMPANY
SEL-C29K61349AMETEK, INC.


Techincal Specification:
ELECTRICAL CONNECTION IDENTIFYING NUMBERTO MATE WITH MS27484T12F98S
ELECTRICAL CONNECTION QUANTITY1
AC VOLTAGE RATING5.0 VOLTS NOMINAL
CONTACT QUANTITY10
CRITICALITY CODE JUSTIFICATIONFEAT
CURRENT TYPEAC/DC
DC VOLTAGE RATING24.0 VOLTS NOMINAL
DIAMETER1.930 INCHES MINIMUM AND 1.940 INCHES MAXIMUM
DISPLAY DIGIT QUANTITY4
DISPLAY TYPELIQUID CRYSTAL
INDIVIDUAL MARKINGN2 % RPM; GREEN BAND 89 TO 95%; RED RADIAL MARKING AT 105%
LENGTH9.000 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYN2 TACHOMETER INDICATOR
POINTER TYPEINDICATING SINGLE POINTER
PRESENTATION TYPEDIAL AND DIGITAL DISPLAY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY REPAIR PARTS
SCALE DIVISION QUANTITY23 SINGLE INDICATOR SINGLE SCALE
SCALE RANGE+0.1 TO 110.0 PERCENT REVOLUTIONS PER MINUTE ALL INDICATORS ALL SCALES
SPECIAL FEATURESINDICATES 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
SUPPLEMENTARY FEATURESTECH ORDER1C-135(K)R-4-4 FIG 2; PART OF THE PILOT/COPILOT FORWARD PANEL P/N 458-50046-508 AND -513


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