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		                        | National Stock Number:
 4820-00-772-7801
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 007727801
 
 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:
 
 | 4D107 | 82829 | ALLEN AIRCRAFT PRODUCTS INC | 
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 Techincal Specification:
 
 | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | ALUMINUM BODY |  | FLOW CONTROL DEVICE | STEM |  | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |  | CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS |  | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |  | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | 
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