NSN 6645-01-067-0780

Part Details | CHRONOMETER

6645-01-067-0780 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: MILC24523, MIL-C-24523, MILC24523, MIL-C-24523, PERFORMANCE SPE, 6645-01-067-0780, 01-067-0780, 6645010670780, 010670780

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66OCT 24, 197801-067-078018695 ( CHRONOMETER )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6645-01-067-0780
Part Number Cage Code Manufacturer
MIL-C-2452338776MARATHON WATCH COMPANY LTDDBA MARATHON MANAGEMENT
MIL-C-2452381349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
PERFORMANCE SPE12004NAVAL SEA SYSTEMS COMMAND LOGISTICSSUPPORT ENGINEERING ACTIVITY
Technical Data | NSN 6645-01-067-0780
Characteristic Specifications
MOVEMENT TYPE CONTINUOUS RUNNING
NONMAGNETIC CHARACTERISTIC INCLUDED
SHOCKPROOF FEATURE PROVIDED
CASE MATERIAL PLASTIC
CRYSTAL TYPEB$F
WATERPROOF FEATURE INCLUDED
CARRYING CASE PROVIDED
TIME TYPE MEAN SOLAR
MOUNTING METHOD PADDED CASE
SPECIAL FEATURESDESIGNED FOR DIGITAL READ-OUT