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		                        | National Stock Number:
 4820-00-972-0230
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 009720230
 
 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:
 
 | 10658298 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |  | 16649-11 | 33654 | HOWDEN FLUID SYSTEMS |  | 16649-11 | 58163 | MEGGITT (NORTH HOLLYWOOD), INC. |  | HF16649-11 | 58163 | MEGGITT (NORTH HOLLYWOOD), INC. |  | HF16649-11 | 62228 | MEGGITT DEFENSE SYSTEMS, INC. | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | STRAIGHT THRU |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | ALUMINUM ALLOY 2024 BODY |  |  | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |  |  | ALUMINUM ALLOY 2024 SEAT |  |  | ALUMINUM ALLOY 2024 STEM |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY |  |  | QQ-A-225/6,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE SEAT |  |  | QQ-A-225/6,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE STEM |  | SURFACE TREATMENT | ANODIZE |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE |  | FLOW CONTROL DEVICE | BALL |  | MAXIMUM OPERATING PRESSURE | 80.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |  | CONNECTION STYLE | PLAIN (PIPE) 1ST END |  | NOMINAL PIPE SIZE ACCOMMODATED | 0.125 INCHES 1ST END |  | THREAD SERIES DESIGNATOR | NPT 1ST END |  | NOMINAL THREAD SIZE | 0.125 INCHES 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | RENEWABLE SEAT RING TYPE | PRESSED-IN | 
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