Product Details | SAFETY RELIEF VALVE

4820-00-155-5671 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: 16943, 1694-3, 2439223, 2-43922-3, 4820-00-155-5671, 00-155-5671, 4820001555671, 001555671

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 24 OCT 1971 00-155-5671

Cross Reference | NSN 4820-00-155-5671

Part Number Cage Code Manufacturer
1694-3 06177 PNEUDRAULICS, INC.
2-43922-3 0JRC1 NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
2-43922-3 76823 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE

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Technical Data | NSN 4820-00-155-5671

Characteristic Specifications
MEDIA FOR WHICH DESIGNED HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 2.0 GALLONS PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END
THREAD SERIES DESIGNATOR UNJF 1ST END
NOMINAL THREAD SIZE 0.750 INCHES 1ST END
THREAD QUANTITY PER INCH 16 1ST END
THREAD CLASS 3A 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 2000.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE
MANUFACTURERS CODE 06177
DESIGN CONTROL REFERENCE 1694-3

Restrictions/Controls & Freight Information | NSN 4820-00-155-5671

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 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating S 60
Less than truck load rating W Rating Variable
Water commodity Code 594 unknown
Originating Activity Code SE San Antonio Air Logistics Center
Kelly AFB, TX 78241-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable