Safety Relief Valve
VAL234
(NSN) National Stock Number
4820-00-261-9590
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
0.500 inches 2nd end nominal pipe size accommodated, 3a 1st end thread class, right-hand 1st end thread direction, right-hand 2nd end thread direction, poppet flow control device, spring disk loading method
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 6 | - | - | C |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 1 | AC | - | ZZ |
Identification
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.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 05488 | A046B0 | 1 | 2 |
Specifications
Nominal Pipe Size Accommodated
0.500 inches 2nd end
Details
A measurement of the pipe size the item will accommodate.Thread Class
3a 1st end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand 1st end
Details
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.Thread Direction
right-hand 2nd end
Details
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.Flow Control Device
poppet
Details
The part that controls the flow through the item.Disk Loading Method
spring
Details
The means of closing the item when inlet pressure decreases.Connection Style
flared (tube) 1st end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Connection Style
plain (pipe) 2nd end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Valve Operation Method
automatic
Details
The means used to control the operation of the valve.Connection Type
threaded external pipe 2nd end
Details
Indicates the type of connection/s/.Connection Type
threaded external tube 1st end
Details
Indicates the type of connection/s/.Features Provided
valve stem lock shield and pressure tight outlet side
Details
Those features,not otherwise specified,which may be required for proper functioning of the item.Thread Quantity Per Inch
14 2nd end
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Nominal Thread Size
0.500 inches 2nd end
Details
A designation that is used for the purpose of general identification of the thread.Nominal Thread Size
0.875 inches 1st end
Details
A designation that is used for the purpose of general identification of the thread.Seat Angle
45.0 degrees 1st end
Details
The angle of the end surface upon which the mated surface seats.Opening Pressure Setting
425.0 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Nominal Outside Diameter Tube Accommodated
0.625 inches 1st end
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Special Features
the end connection identified above as the second end is the valve inlet
Details
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.Material
copper alloy overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Style Designator
angle
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
npt 2nd end
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Thread Series Designator
unf 1st end
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| 3120-425 | 58553 | 3 | - | 5 | 9 | - | AX |
| 3220-425 | 58553 | 5 | - | 3 | 2 | - | AX |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 64490 | - | P | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 594 | Z | 9 |
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Manufacturer
TRANE U.S. INC. DIV TRANE HEADQUARTERS
CAGE: 60532
WHITE BEAR LAKE
, MN
, 55110-3325
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-261-9590
What is the NIIN of the NSN 4820-00-261-9590?
The National Item Identification Number (NIIN) of the NSN 4820-00-261-9590 is 00-261-9590
When the NSN 4820-00-261-9590 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Fri, Jul 13, 1973
Does the NSN 4820-00-261-9590 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-261-9590 contain any hazardous material?
No data in HMIRS
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