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National Stock Number:
4820-01-059-3527
Federal Supply Class:
4820
National Item Identification Number:
010593527
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:
| 559A-4DB-3.3 | 91816 | CIRCOR AEROSPACE, INC. | | C9268-1 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. | | VALVE OPERATION METHOD | AUTOMATIC | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | FLOW CONTROL DEVICE | POPPET | | MAXIMUM OPERATING TEMP | 275.0 DEG FAHRENHEIT SINGLE RESPONSE | | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END | | THREADED INTERNAL BOSS 2ND END | | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END | | GASKET SEAL(BOSS) 2ND END | | THREAD SERIES DESIGNATOR | UNJ ALL ENDS | | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS | | THREAD QUANTITY PER INCH | 20 ALL ENDS | | THREAD CLASS | 3A 1ST END | | 3B 2ND END | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | OPENING PRESSURE SETTING | 3.3 POUNDS PER SQUARE INCH | | MINIMUM OPERATING TEMP | -65.0 DEG FAHRENHEIT |
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