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National Stock Number:
6645-00-238-9054
Federal Supply Class:
6645
National Item Identification Number:
002389054
Description:
CHRONOMETER
Detail:
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.
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Manufacturer Information:
| MILC2536 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| BACKGROUND COLOR | WHITE, SILVER | | CARRYING CASE | NOT PROVIDED | | CORRECT TIME RESET TYPE | SAFETY PUSH PIN AND STEM | | CRYSTAL TYPE | PLASTIC | | DEPARTURE FROM CITED DOCUMENT | SYQX | | DIAL SCALE MARKING LUMINOSITY | NONLUMINOUS | | ESCAPEMENT TYPE | LEVER | | HAND COLOR | BLACK | | HAND DESIGNATION | SECOND HAND | | HAND QUANTITY | 4 | | HAND TYPE | SWEEP AND ECCENTRIC | | INSCRIPTION COLOR | BLACK | | JEWEL QUANTITY | 21 | | LUMINOUS HAND | NOT INCLUDED | | LUMINOUS NUMERAL | NOT INCLUDED | | MATERIAL | COPPER ALLOY CASE | | MAXIMUM RUNNING TIME | 56.000 HOURS | | MOUNTING CASE | NOT INCLUDED | | MOUNTING METHOD | GIMBAL CASE | | MOVEMENT SIZE DESIGNATION | 35 | | SCALE NAME | 12 HOUR | | WINDING METHOD | STEM | | SURFACE TREATMENT | LACQUER CASE | | TIME TYPE | MEAN SOLAR |
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