Product Details | SAFETY RELIEF VALVE

4820-00-410-6001 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: A49148, HNBJ, 4820-00-410-6001, 00-410-6001, 4820004106001, 004106001

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 22 AUG 1969 00-410-6001

Drawings & Photos | NSN 4820-00-410-6001


Cross Reference | NSN 4820-00-410-6001

Part Number Cage Code Manufacturer
A49148 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
HNBJ 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM

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Technical Data | NSN 4820-00-410-6001

Characteristic Specifications
MATERIAL STEEL BODY STEEL COMP 304 FLOW CONTROL DEVICE STEEL COMP 304 SEAT NICKEL ALLOY R-405 STEM
STYLE DESIGNATOR A7A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 6.000 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 6.000 INCHES
VALVE SIZE 2.500 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING TEMP 850.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 32700.0 POUNDS PER HOUR
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE 1ST END FLANGE 2ND END
FLANGE SHAPE ROUND WITH HOLES 1ST END ROUND WITH HOLES 2ND END
NOMINAL OUTSIDE DIAMETER 9.000 INCHES 1ST END 7.500 INCHES 2ND END
NOMINAL THICKNESS 1.187 INCHES 1ST END 1.125 INCHES 2ND END
BOLT HOLE QUANTITY 8 1ST END 8 2ND END
BOLT HOLE NOMINAL DIAMETER 0.875 INCHES 1ST END 0.875 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER 7.250 INCHES 1ST END 5.875 INCHES 2ND END
FLANGE FACE DESIGN RAISED STRAIGHT 1ST END RAISED STRAIGHT 2ND END
RAISED FACE NOMINAL HEIGHT 0.062 INCHES 1ST END 0.500 INCHES 2ND END
RAISED FACE NOMINAL DIAMETER 5.500 INCHES 1ST END 4.125 INCHES 2ND END
RENEWABLE SEAT RING TYPE THREADED
BONNET TYPE EXPOSED SPRING
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 725.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 696.0 TO 760.0 POUNDS PER SQUARE INCH
MANUFACTURERS CODE 15187
DESIGN CONTROL REFERENCE A49148

Restrictions/Controls & Freight Information | NSN 4820-00-410-6001

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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 4820-00-410-6001

Category Code Description
Cognizance Codes7HDepot level reparable shipboard and base equipment, assemblies, components and repair parts related to Naval Sea Systems Command equipment
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplyNRPNAVICP-ERP
700 Robbins Avenue
Philadelphia, PA 19111-5098
AgencyDNDepartment of the Navy
Service OrganizationLLead Service - 22 (Repairable)
ReparabilityHDepot Level Reparable
Acquisition Advice CodesCSERVICE/AGENCY-MANAGED (Service/Agency use only.) # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by individual Services supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative