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		                             National Stock Number: 4820-00-009-3399
  Federal Supply Class: 4820
  National Item Identification Number: 000093399
  Description: VALVE,SAFETY RELIEF
  Detail: A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE. 
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  Manufacturer Information:
 | VS4020-010 | 33371 | ROBERTSHAW CONTROLS CO UNI-LINE DIV |   
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  Techincal Specification:
 | CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS |  | THREAD SERIES DESIGNATOR | NPT ALL ENDS |  | NOMINAL THREAD SIZE | 0.500 INCHES ALL ENDS |   
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