Product Details | SAFETY RELIEF VALVE

4820-00-542-5820 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: F3287229PC457, FIG1768, 5223B, 4820-00-542-5820, 00-542-5820, 4820005425820, 005425820

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-542-5820

Drawings & Photos | NSN 4820-00-542-5820


Cross Reference | NSN 4820-00-542-5820

Part Number Cage Code Manufacturer
5223B 0AT62 DRESSER-RAND COMPANY DBA RECIPROCATING PRODUCTS DIV
5223B 93236 DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN
F3287229PC457 80064 NAVAL SHIP SYSTEMS COMMAND
FIG1768 37239 LUNKENHEIMER CO

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Technical Data | NSN 4820-00-542-5820

Characteristic Specifications
MATERIAL COPPER ALLOY BODY COPPER ALLOY FLOW CONTROL DEVICE COPPER ALLOY SEAT COPPER ALLOY STEM
STYLE DESIGNATOR C2 STRAIGHT THRU
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 800.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE G46B PLAIN 1ST 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
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD THREADED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 551.0 TO 800.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES INLET BORED FOR HIGH PRESSURE

Restrictions/Controls & Freight Information | NSN 4820-00-542-5820

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 P 77.5
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 4820-00-542-5820

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 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