NSN 6645-00-291-6873

Part Details | MAKE-BREAK CIRCUIT CHRONOMETER

6645-00-291-6873 An instrument which measures time to the accuracy of a CHRONOMETER, and which includes precision internal contacts for opening and/or closing an external electric circuit. The intervals and frequency of opening and closing are preset during manufacture by the program wheel(s) design. If mounted, case may contain batteries, spark supressor circuit and relay. See also TIMER, SEQUENTIAL; TIMER, INTERVAL and INTERVALOMETER (as modified).

Alternate Parts: JANC1196, 6645-00-291-6873, 00-291-6873, 6645002916873, 002916873

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-291-687318699 ( CHRONOMETER, MAKE-BREAK CIRCUIT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6645-00-291-6873
Part Number Cage Code Manufacturer
JANC119681349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
Technical Data | NSN 6645-00-291-6873
Characteristic Specifications
DIAL BACKGROUND COLOR WHITE, SILVER
LUMINOUS NUMERAL NOT INCLUDED
HAND COLOR BLACK
SPECIAL FEATURESMOVEMENT SIZE 85 DETENT ESCAPEMENT 15 JEWELS 56 HR RUNNING TIME CAP. KEY WINDING, KEY CORRECT TIME RESET; FOR MTG IN GIMBAL BX CARRY CASE, W/CARRY CASE W/BATTERIES SPARK SUPPRESSOR CIRCUIT AND RELAY; RATE FOR MEAN SOLAR TIME; MOVEMENT CASE BRASS, LACQUERED FIN, GLASS CRYSTAL; 12 HR DIAL NONLUMINOUS GRAD, 4 HANDS BLACK EA HR HAND SWEEP, MIN HAND SWEEP, SEC HAND ECCENTRIC, WIND INDICATOR HAND ECCENTRIC; INT CONTACTS MAKE ON EA SEC EXC ON THE 59TH SEC OF EA MIN
DEPARTURE FROM CITED DOCUMENTAS MOD BY JAN-C-1196 IN ACCORD W/BUSHIPS SKETCH 524-200 THRU 524-231 AND 023225