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National Stock Number: 4820-00-833-7839
Federal Supply Class: 4820
National Item Identification Number: 008337839
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:
| 684-2-1-8D1 | 86768 | TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT | | 684-2-1/8D1 | 09990 | PARKER-HANNIFIN CORPORATION | | 788C424 | 48306 | NORTHROP GRUMMAN SUPPORT SERVICES CORP | | 788C424H07 | 48306 | NORTHROP GRUMMAN SUPPORT SERVICES CORP | | 788C424H07 | 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 788C424 | 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CONNECTION STYLE | PLAIN (PIPE) ALL ENDS | | CONNECTION TYPE | THREADED EXTERNAL PIPE ALL ENDS | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | ALUMINUM ALLOY BODY | | MATERIAL | RUBBER SYNTHETIC SEAT | | MATERIAL | STEEL COMP 303 FLOW CONTROL DEVICE | | MAXIMUM OPERATING TEMP | 225.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | AIR FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | GAS, INERT SECOND RESPONSE | | NOMINAL THREAD SIZE | 0.125 INCHES ALL ENDS | | OPENING PRESSURE SETTING | 20.0 POUNDS PER SQUARE INCH | | OPERATING PRESSURE | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS |
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