Product Details | SAFETY RELIEF VALVE

4820-00-273-1025 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: BB57S47029PC1, BB57S47-029PC1, BB57S47030PC1, BB57S47-030PC1, DD445S470020PC1, DD445S4700-20PC1, DD445S470021PC1, DD445S4700-21PC1, DD692S470019PC1, DD692S4700-19PC1, DD692S470020PC1, DD692S4700-20PC1, G10235PC1, G10236PC1, G32993, G7563PC1, G7564PC1, G8648PC1, G8649PC1, 4820-00-273-1025, 00-273-1025, 4820002731025, 002731025

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-273-1025

Drawings & Photos | NSN 4820-00-273-1025


Cross Reference | NSN 4820-00-273-1025

Part Number Cage Code Manufacturer
BB57S47-029PC1 80064 NAVAL SHIP SYSTEMS COMMAND
BB57S47-030PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD445S4700-20PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD445S4700-21PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD692S4700-19PC1 80064 NAVAL SHIP SYSTEMS COMMAND
DD692S4700-20PC1 80064 NAVAL SHIP SYSTEMS COMMAND
G10235PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G10236PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G32993 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
G7563PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G7564PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G8648PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.
G8649PC1 16712 SIEMENS DEMAG DELAVAL TURBOMACHINERY, INC.

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Technical Data | NSN 4820-00-273-1025

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 POPPET
MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE 1ST END THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G9 PLAIN 2ND END
FLANGE SHAPE ROUND WITH HOLES 1ST END
NOMINAL OUTSIDE DIAMETER 3.562 INCHES 1ST END
BOLT HOLE QUANTITY 3 1ST END
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER 2.437 INCHES 1ST END
FLANGE FACE DESIGN PLAIN 1ST END
THREAD SERIES DESIGNATOR NPT 2ND END
NOMINAL THREAD SIZE 0.500 INCHES 2ND END
THREAD DIRECTION RIGHT-HAND 2ND END
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD INTEGRAL
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 4820-00-273-1025

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 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 4820-00-273-1025

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
ReparabilityDField Level Reparables
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each