NSN 6625-00-556-1878

Part Details | ELECTRICAL FREQUENCY METER

6625-00-556-1878 An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in Hertz (cycles per second or CPS). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see CALIBRATOR, FREQUENCY; and WAVEMENTER. Excludes: COUNTER ELECTRONIC DIGITAL.

Alternate Parts: B104017, 21FX4B52, 957662, 6625-00-556-1878, 00-556-1878, 6625005561878, 005561878

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-556-187816454 ( METER, ELECTRICAL FREQUENCY )
REFERENCE DRAWINGS & PICTURES

THREE HOLE/STUD BOLT CIRCLE

ROUND FLUSH MTG

Cross Reference | NSN 6625-00-556-1878
Part Number Cage Code Manufacturer
B10401709017EDO
21FX4B5231356LEE CO THEJ B T DIV
95766210001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 6625-00-556-1878
Characteristic Specifications
INSTALLATION DESIGN PANEL
INDICATOR TYPE VIBRATING REED
MOVEMENT TYPE VIBRATING REED
REGISTER QUANTITY1
RESONANT REED QUANTITY5
FREQUENCY RESPONSE RANGE+48.000 TO +52.000 HERTZ
CIRCUIT ATTACHMENT METHOD AND QUANTITY2 THREADED STUD
SCALE SELECTION METHOD TERMINAL
POWER SOURCE EXTERNAL
CIRCUIT CURRENT FOR WHICH DESIGNED AC
FREQUENCY RATING50.0 HERTZ NOMINAL
PHASE SINGLE
STYLE DESIGNATOR ROUND FLUSH MTG
METER BODY DIAMETER BEHIND MOUNTING FLANGE2.156 INCHES NOMINAL
METER DEPTH BEHIND MOUNTING FLANGE1.375 INCHES NOMINAL
OVERALL DIAMETER2.688 INCHES NOMINAL
OVERALL LENGTH2.297 INCHES NOMINAL
MOUNTING FACILITY TYPE AND QUANTITY3 UNTHREADED HOLE
MOUNTING HOLE DIAMETER0.125 INCHES NOMINAL
MOUNTING ARRANGEMENT STYLE THREE HOLE/STUD BOLT CIRCLE
MOUNTING BOLT CIRCLE DIAMETER2.438 INCHES NOMINAL
MATERIAL PLASTIC
NUCLEAR HARDNESS CRITICAL FEATURE
FURNISHED ITEMS AND QUANTITYTERM. HDW 2
SPECIAL MARKINGSCYCLES
FSC APPLICATION DATATEST SET,ELECT. EQUIP.