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National Stock Number:
4820-00-344-4712
Federal Supply Class:
4820
National Item Identification Number:
003444712
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:
| D537A6D4.7 | 91816 | CIRCOR AEROSPACE, INC. | | D559A-6D-4.7 | 91816 | CIRCOR AEROSPACE, INC. | | ST7M304 | 76301 | THE BOEING COMPANY | | ST7M304D6-4.7 | 76301 | THE BOEING COMPANY | | D559A6D4.7 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| STYLE DESIGNATOR | STRAIGHT THRU W/BAFFLE | | VALVE OPERATION METHOD | AUTOMATIC | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | ALUMINUM ALLOY 2024 AND | | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE | | ALUMINUM ALLOY 2024 SEAT | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY | | QQ-A-225/6,ALLOY2024,T4 FED SPEC 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE | | QQ-A-225/6,ALLOY2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT | | SURFACE TREATMENT | ANODIZE | | FLOW CONTROL DEVICE | POPPET | | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH 1ST RESPONSE | | MAXIMUM OPERATING TEMP | 140.0 DEG FAHRENHEIT 2ND RESPONSE | | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END | | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.375 INCHES 1ST END | | THREAD SERIES DESIGNATOR | UNF 1ST END | | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END | | THREAD CLASS | 3A 1ST END | | THREAD DIRECTION | RIGHT-HAND 1ST END | | BONNET TYPE | INSIDE SPRING | | BONNET ATTACHMENT METHOD | INTEGRAL | | DISK LOADING METHOD | SPRING | | OPENING PRESSURE SETTING | 4.7 POUNDS PER SQUARE INCH | | MINIMUM OPERATING TEMP | -40.0 DEG FAHRENHEIT |
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