National Stock Number:
4520-27-051-1508
Federal Supply Class:
4520
National Item Identification Number:
270511508
Description:
KAZAN, ISITMA
Detail:
A UNIT CONSISTING OF A SERIES OF METAL SHELLS AND/OR TUBES ASSEMBLED IN INTEGRAL FORM, UTILIZING A SPACE ENCLOSED WITHIN ITSELF AS A COMBUSTION CHAMBER FOR BURNING FUEL. THE HEAT EMANATING FROM THE BURNING FUEL IS ABSORBED BY WATER CIRCULATING THROUGH THE SHELLS AND/OR TUBES, RAISING THE WATER TEMPERATURE TO A PREDETERMINED DEGREE OR CHANGING ITS PHYSICAL PROPERTIES TO STEAM. EXCLUDES HIGH PRESSURE STEAM BOILERS OVER 15 POUNDS (6.804 KG) GAUGE WORKING STEAM PRESSURE.
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