Product Details | SAFETY RELIEF VALVE

4820-01-289-3479 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: 649XB-3-1/4-2, 649XB3142, 649XB342, 649XB-3-4-2, 4820-01-289-3479, 01-289-3479, 4820012893479, 012893479

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 22 NOV 1988 01-289-3479

Drawings & Photos | NSN 4820-01-289-3479


Demand History | NSN 4820-01-289-3479

Part Number Request Date QTY Origin
4820-01-289-3479 2011-10-27 2 DIBBS
4820-01-289-3479 2011-06-30 1 DIBBS

Cross Reference | NSN 4820-01-289-3479

Part Number Cage Code Manufacturer
649XB-3-1/4-2 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC
649XB-3-4-2 09990 PARKER-HANNIFIN CORPORATION DBA HYDRAULIC VALVE DIV
649XB-3-4-2 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC

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Technical Data | NSN 4820-01-289-3479

Characteristic Specifications
MATERIAL STEEL COMP 303 BODY STEEL COMP 303 FLOW CONTROL DEVICE RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE HYDRAULIC FLUID, MINERAL BASE 2ND RESPONSE
MAXIMUM OPERATING PRESSURE 3600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 225.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLE G42 FLARED ALL ENDS
SEAT ANGLE 37.0 DEGREES ALL ENDS
THREAD SERIES DESIGNATOR UNJ ALL ENDS
NOMINAL THREAD SIZE 0.438 INCHES ALL ENDS
THREAD QUANTITY PER INCH 20 ALL ENDS
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD THREADED
ADJUSTABLE PRESSURE RANGE 40.0 TO 125.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-289-3479

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:AItem does not contain precious metal
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

Management | NSN 4820-01-289-3479

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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