Product Details | SAFETY RELIEF VALVE

4820-01-134-7752 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: 6278-1-1/4-1, 62781141, 627B-1-1/4-1, 627B1141, 4820-01-134-7752, 01-134-7752, 4820011347752, 011347752

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 09 JUL 1982 01-134-7752

Drawings & Photos | NSN 4820-01-134-7752


Demand History | NSN 4820-01-134-7752

Part Number Request Date QTY Origin
627B-1-1/4-1 2024-06-156 4 DIBBS
62781141 2012-09-251 1 US
4820-01-134-7752 2010-08-236 2 DIBBS
627B1141 2010-01-12 1 United States

Cross Reference | NSN 4820-01-134-7752

Part Number Cage Code Manufacturer
6278-1-1/4-1 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC
627B-1-1/4-1 09990 PARKER-HANNIFIN CORPORATION DBA HYDRAULIC VALVE DIV
627B-1-1/4-1 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC

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Technical Data | NSN 4820-01-134-7752

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY
MATERIAL DOCUMENT AND CLASSIFICATION AISI 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE GAS, INERT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE 3600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 225.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G9 PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
ADJUSTABLE PRESSURE RANGE 4.0 TO 15.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-134-7752

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:AItem does not contain precious metal
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 671 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