NSN 6645-01-504-2301

Part Details | CHRONOMETER

6645-01-504-2301 An instrument for precisely determining time, manufactured to close tolerances to assure the time-keeping qualities of dependability and consistency of rate. These qualities are accurately ascertained by comparison with more exact devices or by astronomical methods so that the accumulated error may be taken into account when determining time. Its usual uses are to indicate time for navigational purposes, and to serve as a reference for less accurate timepieces. It is usually provided with a winding indicator dial and is usually mounted in gimbals to maintain the instrument in a level position. May consist of a spring driven or other type of movement which is capable of exacting performance without regulation throughout the normal range of room temperatures. Not designed for carrying on the person.

Alternate Parts: M8775, M877-5, 6645-01-504-2301, 01-504-2301, 6645015042301, 015042301

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 22, 200301-504-230118695 ( CHRONOMETER )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6645-01-504-2301
Part Number Cage Code Manufacturer
M877-563131DAVTRONDBA DAVTRON INC.
Technical Data | NSN 6645-01-504-2301
Characteristic Specifications
HAND QUANTITY0
LUMINOUS HAND NOT INCLUDED
CASE MATERIAL ANY ACCEPTABLE
CARRYING CASE NOT PROVIDED
TIME TYPE MEAN SOLAR
OVERALL LENGTH2.375 INCHES NOMINAL
OVERALL DEPTH2.910 INCHES NOMINAL
OVERALL HEIGHT1.875 INCHES NOMINAL
MOUNTING METHOD GIMBAL CASE
MOUNTING CASE NOT INCLUDED
SPECIAL FEATURESSUNLIGHT READABLE INCANDESCENT DISPLAY; ILLUMINATED BUTTONS AND ANNUNCIATORS; FLIGHT TIME RECORDED IN HOURS AND MINUTES OR IN HOURS, TENTHS AND HUNDREDTHS; SERIAL TIME DATA OUTPUT FOR REMOTE USE; FLIGHT TIME ALARM; ELAPSED TIME COUNT DOWN TIMER WITH ALARM