Product Details | SAFETY RELIEF VALVE

4820-01-070-9173 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: A10066002, A10066-002, 559B2MP15, 559B-2MP-15, 4820-01-070-9173, 01-070-9173, 4820010709173, 010709173

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 24 JAN 1979 01-070-9173

Drawings & Photos | NSN 4820-01-070-9173


Cross Reference | NSN 4820-01-070-9173

Part Number Cage Code Manufacturer
559B-2MP-15 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS
A10066-002 28652 MOOG INC WESTERN DEVELOPMENT CENTER

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Technical Data | NSN 4820-01-070-9173

Characteristic Specifications
MATERIAL COPPER ALLOY BODY RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
STYLE DESIGNATOR C8 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE ACETYLENE 2ND RESPONSE AMMONIA, GASEOUS 3RD RESPONSE REFRIGERANT 12 4TH RESPONSE HYDROGEN 5TH RESPONSE
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G46B PLAIN 1ST END G9 PLAIN 2ND END
THREAD SERIES DESIGNATOR NPT 1ST END NPT 2ND END
NOMINAL THREAD SIZE 0.250 INCHES 1ST END 0.250 INCHES 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 15.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES INLINE TYPE

Restrictions/Controls & Freight Information | NSN 4820-01-070-9173

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 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 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable