4820-00-139-5955 STRAINER ELEMENT,SEDIMENT Index 3020-00-139-5957 GEAR,SPUR

National Stock Number:
4820-00-139-5956

Federal Supply Class:
4820

National Item Identification Number:
001395956

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.


Manufacturer Information:
232-005-000595542NORTHROP GRUMMAN SYSTEMS CORPORATION
232-005-000695542NORTHROP GRUMMAN SYSTEMS CORPORATION
524A4D3191816CIRCOR AEROSPACE, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+25.0 TO 75.0 POUNDS PER SQUARE INCH
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END
CONNECTION TYPETHREADED EXTERNAL BOSS 1ST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPENING PRESSURE SETTING31.0 POUNDS PER SQUARE INCH
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALALUMINUM ALLOY 2024 FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 SEAT
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP240.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL THREAD SIZE0.437 INCHES 1ST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
THREAD QUANTITY PER INCH20 1ST END


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