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National Stock Number:
1290-00-554-4886
Federal Supply Class:
1290
National Item Identification Number:
005544886
Description:
SCALE,SOUND-SECOND
Detail:
(ALL EXCEPT USA) FOR USA INC 20907 CANCELED REPLACED BY SCALE, PLOTTING: INC 08929, FIIG T144, APPL KEY PB. A THIN, FLAT STRIP OF METAL OR PLASTIC, HAVING ONE EDGE GRADUATED IN SOUND-SECONDS, AND/OR TENTHS OF A SOUND-SECOND. IT IS USED TO EVALUATE THE LINEAR DISTANCE OF TIME INTERVALS RECORDED BY VARIOUS PREVIOUSLY ORIENTED MICROPHONES WHEN THE SOUND IS RECEIVED. EACH SOUND-SECOND GRADUATION IS EQUIVALENT TO 337.6 METERS UNDER STANDARD ATMOSPHERIC CONDITIONS, AT 50 DEGREES FAHRENHEIT (10 DEGREES CELCIUS).
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Manufacturer Information:
| 5544886 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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