9540-00-554-9996 CHANNEL,STRUCTURAL Index 4940-00-555-0004 ENCLOSURE,ELECTROMAGNETIC SHIELD

National Stock Number:
4820-00-555-0000

Federal Supply Class:
4820

National Item Identification Number:
005550000

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:
31334581982HYDRO-AIRE AEROSPACE CORP
313345-150081982HYDRO-AIRE AEROSPACE CORP
4541-406177PNEUDRAULICS, INC.
754595606177PNEUDRAULICS, INC.
754595618355THE BOEING COMPANY
754595688277THE BOEING COMPANY


Techincal Specification:
BONNET TYPEPACKING RETAINING
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLEGASKET SEAL(BOSS) ALL ENDS
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MAXIMUM OPERATING TEMP160.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS
NOMINAL THREAD SIZE0.437 INCHES ALL ENDS
OPENING PRESSURE SETTING1500.0 POUNDS PER SQUARE INCH
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTANODIZE
THREAD CLASS3B ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD QUANTITY PER INCH20 ALL ENDS
THREAD SERIES DESIGNATORUNJF ALL ENDS
VALVE DISCHARGE FLOW RATE2.5 GALLONS PER MINUTE
VALVE OPERATION METHODAUTOMATIC


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