Product Details | SAFETY RELIEF VALVE

4820-00-289-1789 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: MILV20065, R6215AM, TYPE1512, 4820-00-289-1789, 00-289-1789, 4820002891789, 002891789

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-289-1789

Drawings & Photos | NSN 4820-00-289-1789


Cross Reference | NSN 4820-00-289-1789

Part Number Cage Code Manufacturer
MILV20065 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
R6215AM 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
TYPE1512 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP

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Technical Data | NSN 4820-00-289-1789

Characteristic Specifications
MATERIAL STEEL UNS J03008 BODY NICKEL ALLOY FLOW CONTROL DEVICE STEEL CORROSION RESISTING SEAT STEEL CORROSION RESISTING STEM
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-15083 MIL SPEC SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATOR A7A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 3.750 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 1.812 INCHES
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED STEAM SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 400.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC OR MANUAL
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END FLANGE 2ND END
CONNECTION STYLE G9 PLAIN 1ST END
FLANGE SHAPE ROUND WITH HOLES 2ND END
NOMINAL OUTSIDE DIAMETER 3.750 INCHES 2ND END
NOMINAL THICKNESS 0.562 INCHES 2ND END
BOLT HOLE QUANTITY 4 2ND END
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER 2.625 INCHES 2ND END
FLANGE FACE DESIGN RAISED STRAIGHT 2ND END
RAISED FACE NOMINAL HEIGHT 0.250 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER 2.000 INCHES 2ND END
NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 0.500 INCHES 1ST END
THREAD QUANTITY PER INCH 14 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
RENEWABLE SEAT RING TYPE THREADED
BONNET TYPE EXPOSED SPRING
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 91.0 TO 144.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 SIGHT GAGE
FEATURES PROVIDED VALVE STEM LOCK SHIELD
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND D COMPOSITION
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILV20065

Restrictions/Controls & Freight Information | NSN 4820-00-289-1789

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 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 4820-00-289-1789

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
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each