3460-00-950-7639 HOLDER,COUNTERBORE Index 9340-00-950-7646 WINDOW,OBSERVATION

National Stock Number:
4820-00-950-7642

Federal Supply Class:
4820

National Item Identification Number:
009507642

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:
232-001-000195542NORTHROP GRUMMAN SYSTEMS CORPORATION
524A-1M-3591816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALALUMINUM ALLOY 2024 SEAT
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP-70.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, CHLORINATED TRANSFORMER SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS THIRD RESPONSE
NOMINAL THREAD SIZE0.125 INCHES FIRST END
OPENING PRESSURE SETTING35.0 POUNDS PER SQUARE INCH
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


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