National Stock Number: 1430-00-788-2949
  Federal Supply Class: 1430
  National Item Identification Number: 007882949
  Description: CAVITY,TUNED
  Detail: AN INCLOSURE, WITH A CONDUCTIVE INNER WALL, WHOSE RESONANT FREQUENCY IS DETERMINED BY ITS INTERNAL DIMENSIONS. FOR CALIBRATED ITEMS WHICH ARE USED TO MEASURE WAVELENGTH OR FREQUENCY, SEE WAVEMETER; SEE ALSO FREQUENCY METER.
		                         |