Product Details | SAFETY RELIEF VALVE

4820-00-920-3451 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: 1462B8, 30037001PC13, 30037-001PC13, 3422RA PIECE 11, 3422RAPIECE11, 3423RA PIECE 8, 3423RAPIECE8, 3426RA PIECE 11, 3426RAPIECE11, 3427RA PIECE 9, 3427RAPIECE9, 4820-00-920-3451, 00-920-3451, 4820009203451, 009203451

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1960 00-920-3451

Drawings & Photos | NSN 4820-00-920-3451


Cross Reference | NSN 4820-00-920-3451

Part Number Cage Code Manufacturer
1462B8 78062 DOVER ENGINEERED SYSTEMS, INC. DBA SARGENT CONTROLS & AEROSPACE
30037-001PC13 78062 DOVER ENGINEERED SYSTEMS, INC. DBA SARGENT CONTROLS & AEROSPACE
3422RA PIECE 11 78062 DOVER ENGINEERED SYSTEMS, INC. DBA SARGENT CONTROLS & AEROSPACE
3423RA PIECE 8 78062 DOVER ENGINEERED SYSTEMS, INC. DBA SARGENT CONTROLS & AEROSPACE
3426RA PIECE 11 78062 DOVER ENGINEERED SYSTEMS, INC. DBA SARGENT CONTROLS & AEROSPACE
3427RA PIECE 9 78062 DOVER ENGINEERED SYSTEMS, INC. DBA SARGENT CONTROLS & AEROSPACE

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Technical Data | NSN 4820-00-920-3451

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
STYLE DESIGNATOR C6 STRAIGHT THRU
FLOW CONTROL DEVICE BALL
MEDIA FOR WHICH DESIGNED FUEL/OIL, HYDROCARBON SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLE G50 EXTERNAL SEAT FOR GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR UNF ALL ENDS
NOMINAL THREAD SIZE 0.500 INCHES ALL ENDS
THREAD CLASS 2A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
BONNET TYPE PACKING RETAINING
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 3000.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-00-920-3451

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 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 4820-00-920-3451

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each