Product Details | SAFETY RELIEF VALVE

4820-00-850-3773 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: 7439282P1, 4820-00-850-3773, 00-850-3773, 4820008503773, 008503773

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1962 00-850-3773

Cross Reference | NSN 4820-00-850-3773

Part Number Cage Code Manufacturer
7439282P1 24446 GENERAL ELECTRIC CO
7439282P1 99971 LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE

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Technical Data | NSN 4820-00-850-3773

Characteristic Specifications
MATERIAL COPPER ALLOY OVERALL
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED NITROGEN, GASEOUS SINGLE RESPONSE
MAXIMUM OPERATING TEMP 160.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD PRESSURE SEAL, RING TYPE
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 1300.0 POUNDS PER SQUARE INCH
MANUFACTURERS CODE 99971
DESIGN CONTROL REFERENCE 7439282P1

Restrictions/Controls & Freight Information | NSN 4820-00-850-3773

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