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National Stock Number: 4820-00-724-8470
Federal Supply Class: 4820
National Item Identification Number: 007248470
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:
| 112C1-4IN-275PSI | 75336 | F.C.KINGSTON CO. DBA STORM MANUFACTURING | | 48-1-4-275 | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | | 48-1-4IN275LB | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | | A211557-2 | 32537 | JOY GLOBAL UNDERGROUND MINING LLC | | A211557-2 | 83179 | JOY MFG CO AIR POWER GROUP MICHIGAN CITY PLANT |
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Techincal Specification:
| STYLE DESIGNATOR | ANGLE | | VALVE OPERATION METHOD | AUTOMATIC OR | | MANUAL | | MATERIAL | COPPER ALLOY OVERALL | | FLOW CONTROL DEVICE | PISTON | | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE | | VALVE DISCHARGE FLOW RATE | 159.0 CUBIC FEET PER MINUTE | | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END | | CONNECTION STYLE | PLAIN (PIPE) 1ST END | | THREAD SERIES DESIGNATOR | NPT 1ST END | | NOMINAL THREAD SIZE | 0.250 INCHES 1ST END | | THREAD DIRECTION | RIGHT-HAND 1ST END | | RENEWABLE SEAT RING TYPE | PRESSED-IN | | BONNET TYPE | INSIDE SPRING | | BONNET ATTACHMENT METHOD | PRESSURE SEAL, RING TYPE | | DISK LOADING METHOD | SPRING | | OPENING PRESSURE SETTING | 275.0 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | GRUMMAN,A10 AIRCRAFT |
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