Product Details | SAFETY RELIEF VALVE

4820-00-270-5861 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.

Part Alternates: 250, 4820-00-270-5861, 00-270-5861, 4820002705861, 002705861

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 28 JUL 1973 00-270-5861

Drawings & Photos | NSN 4820-00-270-5861


Demand History | NSN 4820-00-270-5861

Part Number Request Date QTY Origin
250 2022-12-361 7 Saudi Arabia

Cross Reference | NSN 4820-00-270-5861

Part Number Cage Code Manufacturer
250 34474 EAGLE SPLINE GAUGE INC

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Technical Data | NSN 4820-00-270-5861

Characteristic Specifications
MATERIAL IRON CAST BODY COPPER ALLOY SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED STEAM SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 15820.0 POUNDS PER HOUR
VALVE OPERATION METHOD AIR
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G9 PLAIN 1ST END G9 PLAIN 2ND END
NOMINAL PIPE SIZE ACCOMMODATED 1.500 INCHES 1ST END 2.500 INCHES 2ND END
THREAD SERIES DESIGNATOR NPT 1ST END NPT 2ND END
NOMINAL THREAD SIZE 1.500 INCHES 1ST END 2.500 INCHES 2ND END
THREAD QUANTITY PER INCH 11-1/2 1ST END 8 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 250.0 POUNDS PER SQUARE INCH
MOUNTING FACILITY THREADED FASTENER

Restrictions/Controls & Freight Information | NSN 4820-00-270-5861

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information