Product Details | SAFETY RELIEF VALVE

4820-00-147-1692 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: 10658299, 1664916, 16649-16, 4820-00-147-1692, 00-147-1692, 4820001471692, 001471692

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 26 SEP 1971 00-147-1692

Drawings & Photos | NSN 4820-00-147-1692


Cross Reference | NSN 4820-00-147-1692

Part Number Cage Code Manufacturer
10658299 18876 U S ARMY AVIATION AND MISSILE COMMAND
16649-16 33654 HOWDEN FLUID SYSTEMS
16649-16 58163 MEGGITT (NORTH HOLLYWOOD), INC. DBA MEGGITT CONTROL SYSTEMS

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Technical Data | NSN 4820-00-147-1692

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 BODY ALUMINUM ALLOY 2024 AND SILICON FLOW CONTROL DEVICE STEEL COMP 303 PACKING ALUMINUM ALLOY 2024 SEAT ALUMINUM ALLOY 2024 STEM
SURFACE TREATMENT ANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR C4 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE OXYGEN, GASEOUS 2ND RESPONSE OIL, CHLORINATED TRANSFORMER 3RD RESPONSE
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 450.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE G9 PLAIN 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 0.125 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 30.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-00-147-1692

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