Product Details | SAFETY RELIEF VALVE

4820-00-244-9539 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: 1A31F330S, 1A31F3-30S, 310488, 4820-00-244-9539, 00-244-9539, 4820002449539, 002449539

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 11 JUL 1969 00-244-9539

Drawings & Photos | NSN 4820-00-244-9539


Cross Reference | NSN 4820-00-244-9539

Part Number Cage Code Manufacturer
1A31F3-30S 8Z296 DANFOSS FLUID POWER INC EASLEY OPN
310488 33654 HOWDEN FLUID SYSTEMS
310488 58163 MEGGITT (NORTH HOLLYWOOD), INC. DBA MEGGITT CONTROL SYSTEMS

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Technical Data | NSN 4820-00-244-9539

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY STEEL FLOW CONTROL DEVICE ALUMINUM ALLOY SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE PISTON
MEDIA FOR WHICH DESIGNED HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 3.0 GALLONS PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G9 PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPTF ALL ENDS
NOMINAL THREAD SIZE 0.375 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 150.0 TO 3000.0 POUNDS PER SQUARE INCH
MOUNTING FACILITY THREADED FASTENER
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE
SPECIAL FEATURES W/TWO DRILLED MTG HOLES THRU BODY 0.344 IN. DIA; PRESSURE SCREW ADJUSTMENT AND BUNA-N SEAL

Restrictions/Controls & Freight Information | NSN 4820-00-244-9539

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable