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		                        | National Stock Number:
 4820-00-757-3231
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 007573231
 
 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:
 
 | 4C187 | 82829 | ALLEN AIRCRAFT PRODUCTS INC |  | 8453133-1 | 02769 | LOCKHEED MARTIN CORPORATION |  | 8453133-1 | 49671 | LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES | 
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 Techincal Specification:
 
 | CONNECTION TYPE | THREADED CARTRIDGE ALL ENDS |  | CONNECTION STYLE | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |  | MOUNTING FACILITY | THREADED FASTENER |  | SPECIAL FEATURES | HEX 0.688 IN.; THRU HOLE 0.590 IN. DIA BOTH SIDES |  | STYLE DESIGNATOR | SCREW-IN CARTRIDGE |  | VALVE OPERATION METHOD | AUTOMATIC | 
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