4730-00-808-0524 NUT,TUBE COUPLING Index 1650-00-808-0527 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-808-0526

Federal Supply Class:
4820

National Item Identification Number:
008080526

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:
668413-198897LOCKHEED MARTIN CORP
668413-398897LOCKHEED MARTIN CORP
P30-22091816CIRCOR AEROSPACE, INC.
P36-22091816CIRCOR AEROSPACE, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+66.0 TO 70.0 POUNDS PER SQUARE INCH
CONNECTION STYLEFLARELESS (TUBE) 1ST END
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDVALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
OPENING PRESSURE SETTING59.0 POUNDS PER SQUARE INCH
MATERIALALUMINUM ALLOY BODY
MATERIALALUMINUM ALLOY SEAT
MAXIMUM OPERATING PRESSURE75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES 1ST END
NOMINAL THREAD SIZE0.562 INCHES 1ST END
SEAT ANGLE12.0 DEGREES 1ST END
VALVE DISCHARGE FLOW RATE4.0 GALLONS PER MINUTE
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
TEST DATA DOCUMENT36659-668413 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
THREAD QUANTITY PER INCH18 1ST END


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