Product Details | SAFETY RELIEF VALVE

4820-00-289-3820 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: DD423S4754PC1, DD423S47-54PC1, DD423S4755PC1, DD423S47-55PC1, DD423S4756PC1, DD423S47-56PC1, DD423S4757PC1, DD423S47-57PC1, G7197PC1, G7198PC1, G7199PC1, G7200PC1, 4820-00-289-3820, 00-289-3820, 4820002893820, 002893820

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-289-3820

Drawings & Photos | NSN 4820-00-289-3820


Cross Reference | NSN 4820-00-289-3820

Part Number Cage Code Manufacturer
DD423S47-54PC1 53711 NAVAL SEA SYSTEMS COMMAND
DD423S47-54PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD423S47-55PC1 53711 NAVAL SEA SYSTEMS COMMAND
DD423S47-55PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD423S47-56PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD423S47-57PC1 80064 NAVAL SHIP SYSTEMS COMMAND
G7197PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G7198PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G7199PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G7200PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.

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Technical Data | NSN 4820-00-289-3820

Characteristic Specifications
MATERIAL COPPER ALLOY BODY COPPER ALLOY FLOW CONTROL DEVICE COPPER ALLOY SEAT STEEL CORROSION RESISTING STEM
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 406.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLE G9 PLAIN 1ST END G46B PLAIN 2ND END
NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES 1ST END 0.500 INCHES 2ND END
THREAD SERIES DESIGNATOR NPT 1ST END NPT 2ND END
NOMINAL THREAD SIZE 0.500 INCHES 1ST END 0.500 INCHES 2ND END
THREAD QUANTITY PER INCH 14 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD THREADED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 0.0 TO 12.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE

Restrictions/Controls & Freight Information | NSN 4820-00-289-3820

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 P 77.5
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code XX
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

Management | NSN 4820-00-289-3820

Category Code Description
Cognizance Codes9CNavy-owned stocks of defense construction material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9CDefense Supply Center Columbus
Columbus, OH 43215
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each