Product Details | SAFETY RELIEF VALVE

4820-00-457-8344 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: 215057, 800E1810, 4820-00-457-8344, 00-457-8344, 4820004578344, 004578344

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 30 APR 1969 00-457-8344

Drawings & Photos | NSN 4820-00-457-8344


Cross Reference | NSN 4820-00-457-8344

Part Number Cage Code Manufacturer
215057 02413 KERSEY / AMERICAN LAFRANCE A DIV OF FIGGIE INTERNATIONAL INC
800E1810 02413 KERSEY / AMERICAN LAFRANCE A DIV OF FIGGIE INTERNATIONAL INC

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Technical Data | NSN 4820-00-457-8344

Characteristic Specifications
MATERIAL COPPER ALLOY BODY STEEL FLOW CONTROL DEVICE
STYLE DESIGNATOR C3 ANGLE
FLOW CONTROL DEVICE BALL
MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE G46B PLAIN 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 0.250 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING

Restrictions/Controls & Freight Information | NSN 4820-00-457-8344

Category Code Description
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.
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