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National Stock Number: 4820-00-073-1775
Federal Supply Class: 4820
National Item Identification Number: 000731775
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:
| 1A057 | 98391 | ARKWIN INDUSTRIES, INC. | | 1A057-1 | 98391 | ARKWIN INDUSTRIES, INC. |
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Techincal Specification:
| ADJUSTABLE PRESSURE RANGE | +3000.0 TO 4000.0 POUNDS PER SQUARE INCH | | BONNET ATTACHMENT METHOD | PRESSURE SEAL, RING TYPE | | BONNET TYPE | INSIDE SPRING | | CONNECTION STYLE | GASKET SEAL(BOSS) FIRST END | | CONNECTION TYPE | THREADED INTERNAL BOSS FIRST END | | DISK LOADING METHOD | SPRING | | FEATURES PROVIDED | BONNET PACKING AND PRESSURE TIGHT OUTLET SIDE | | OPERATING PRESSURE | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE | | NOMINAL THREAD SIZE | 0.437 INCHES FIRST END | | OPENING PRESSURE SETTING | 4000.0 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | REVERSE FLOW | | VALVE DISCHARGE FLOW RATE | 1.0 GALLONS PER MINUTE | | VALVE OPERATION METHOD | MANUAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | SURFACE TREATMENT | ANODIZE LOCATION NOT OTHERWISE SPECIFIED | | THREAD CLASS | 3B FIRST END | | THREAD DIRECTION | RIGHT-HAND FIRST END | | THREAD QUANTITY PER INCH | 20 FIRST END | | THREAD SERIES DESIGNATOR | UNF FIRST END |
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