1650-00-541-7658 VALVE,SAFETY RELIEF Index 4140-00-541-7661 FAN,VENTILATING

National Stock Number:
4820-00-541-7659

Federal Supply Class:
4820

National Item Identification Number:
005417659

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:
4381026-52718355THE BOEING COMPANY
4381026-52788277THE BOEING COMPANY
7545912-50718355THE BOEING COMPANY
7545912-50788277THE BOEING COMPANY
A40154A81982HYDRO-AIRE AEROSPACE CORP
A40154A365081982HYDRO-AIRE AEROSPACE CORP


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+2300.0 TO 3850.0 POUNDS PER SQUARE INCH
BONNET TYPEPACKING RETAINING
CONNECTION STYLEGASKET SEAL(BOSS) 1ST END
CONNECTION TYPETHREADED INTERNAL BOSS 1ST END
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEPOPPET
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL THREAD SIZE0.437 INCHES 1ST END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
THREAD CLASS3B 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD QUANTITY PER INCH20 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
VALVE OPERATION METHODAUTOMATIC


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