Product Details | SAFETY RELIEF VALVE

4820-01-334-1374 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: PL315223 ASSY 1905-30GC-1, PL315223ASSY190530GC1, 1905-30GC-1 S/N, 190530GC1SN, 315223, 4820-01-334-1374, 01-334-1374, 4820013341374, 013341374

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 16 FEB 1991 01-334-1374

Drawings & Photos | NSN 4820-01-334-1374


Cross Reference | NSN 4820-01-334-1374

Part Number Cage Code Manufacturer
1905-30GC-1 S/N 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
315223 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP
PL315223 ASSY 1905-30GC-1 16497 DRESSER, INC. DBA DRESSER EQUIPMENT GROUP

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Technical Data | NSN 4820-01-334-1374

Characteristic Specifications
MATERIAL STEEL BODY STEEL COMP 316 FLOW CONTROL DEVICE
STYLE DESIGNATOR C1A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 4.750 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 4.875 INCHES
VALVE SIZE 2.500 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
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 7.000 INCHES 1ST END 5.000 INCHES 2ND END
NOMINAL THICKNESS 0.688 INCHES 1ST END 0.563 INCHES 2ND END
BOLT HOLE QUANTITY 4 1ST END 4 2ND END
BOLT HOLE NOMINAL DIAMETER 0.750 INCHES 1ST END 0.625 INCHES 2ND END
BOLT CIRCLE NOMINAL DIAMETER 5.500 INCHES 1ST END 3.875 INCHES 2ND END
FLANGE FACE DESIGN RAISED STRAIGHT 1ST END RAISED STRAIGHT 2ND END
RAISED FACE NOMINAL HEIGHT 0.062 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER 4.125 INCHES 1ST END 2.875 INCHES 2ND END
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 19.0 TO 25.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-334-1374

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 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 4820-01-334-1374

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