3020-00-283-9070 PULLEY,FLAT Index 2815-00-283-9072 ENGINE BLOCK ASSEMBLY,DIESEL

National Stock Number:
4820-00-283-9071

Federal Supply Class:
4820

National Item Identification Number:
002839071

Description:
VALVE,RESTRICTOR CHECK

Detail:
A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.


Manufacturer Information:
R4002-311825ENGINEERED MAGNETICS INC AAP DIV
R4002-332067MARVIN ENGINEERING CO, INC


Techincal Specification:
MATERIALALUMINUM ALLOY 2024 BODY
STEEL COMP 303 FLOW CONTROL DEVICE
ALUMINUM ALLOY 2024 SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY
66, AISI 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE SEAT
SURFACE TREATMENTANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625 MIL SPEC ALL TREATMENT RESPONSES
STYLE DESIGNATORSTRAIGHT THRU
APERTURE DIAMETER0.802 INCHES NOMINAL
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP275.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLEFLARELESS 1ST END
FLARELESS 2ND END
SEAT ANGLE12.0 DEGREES 1ST END
12.0 DEGREES 2ND END
THREAD SERIES DESIGNATORUNJF 1ST END
UNJF 2ND END
NOMINAL THREAD SIZE0.562 INCHES 1ST END
0.438 INCHES 2ND END
THREAD CLASS3A 1ST END
3A 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
MOUNTING POSITIONHORIZONTAL
DISK LOADING METHODSPRING


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