Product Details | SAFETY RELIEF VALVE

4820-00-446-3559 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: AD4708, AK29S4924ALT3PC10, AK29S49-24ALT3PC10, AR5S49022PC12, AR5S49-022PC12, 1768M, 4820-00-446-3559, 00-446-3559, 4820004463559, 004463559

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-446-3559

Drawings & Photos | NSN 4820-00-446-3559


Cross Reference | NSN 4820-00-446-3559

Part Number Cage Code Manufacturer
1768M 5P967 DANTE VALVE COMPANY INC
1768M 65079 DANCO VALVE COMPANY
AD4708 37239 LUNKENHEIMER CO
AK29S49-24ALT3PC10 53711 NAVAL SEA SYSTEMS COMMAND
AK29S49-24ALT3PC10 80064 NAVAL SHIP SYSTEMS COMMAND
AR5S49-022PC12 53711 NAVAL SEA SYSTEMS COMMAND
AR5S49-022PC12 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-00-446-3559

Characteristic Specifications
MATERIAL COPPER ALLOY BODY NICKEL ALLOY FLOW CONTROL DEVICE NICKEL ALLOY SEAT COPPER ALLOY STEM
STYLE DESIGNATOR C2 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 4800.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE G46B PLAIN 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 0.375 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD INTEGRAL
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 2800.0 TO 4800.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-00-446-3559

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 576 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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 4820-00-446-3559

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