Safety Relief Valve
D559A3M2
(NSN) National Stock Number
4820-00-001-0037
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
0.375 inches 1st end nominal pipe size accommodated, right-hand 1st end thread direction, poppet flow control device, inside screw bonnet type, threaded bonnet attachment method, spring disk loading method
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 3 | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | HD |
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
0.375 inches 1st end
Details
A measurement of the pipe size the item will accommodate.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.Flow Control Device
poppet
Details
The part that controls the flow through the item.Bonnet Type
inside screw
Details
Indicates the type of housing on the item that accommodates the stem packing or spring.Bonnet Attachment Method
threaded
Details
The means by which the bonnet is attached to the item.Disk Loading Method
spring
Details
The means of closing the item when inlet pressure decreases.Maximum Operating Temp
280.0 deg fahrenheit single response
Details
The maximum temperature at which the item is rated to operate for an extended period of time.Connection Style
plain (pipe) 1st 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 1st end
Details
Indicates the type of connection/s/.Maximum Operating Pressure
200.0 pounds per square inch single response
Details
The maximum pressure at which the item is rated for operation.Nominal Thread Size
0.375 inches 1st end
Details
A designation that is used for the purpose of general identification of the thread.Opening Pressure Setting
2.0 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Material
aluminum alloy 2024 and rubber butadiene-acrylonitrile class nbr flow control device
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
aluminum alloy 2024 body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
aluminum alloy 2024 seat
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
qq-a-225/6,alloy2024,t4 fed spec single material response body
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Material Document And Classification
qq-a-225/6,alloy2024,t4 fed spec single material response flow control device
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Material Document And Classification
qq-a-225/6,alloy2024,t4 fed spec single material response seat
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Media For Which Designed
air 1st response
Details
The type of media for which the item is designed.Media For Which Designed
fuel/oil, hydrocarbon 3rd response
Details
The type of media for which the item is designed.Media For Which Designed
helium 2nd response
Details
The type of media for which the item is designed.Media For Which Designed
hydrogen 4th response
Details
The type of media for which the item is designed.Surface Treatment
anodize
Details
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.Surface Treatment Document And Classification
mil-a-8625,ty 1 mil spec single treatment response
Details
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.Style Designator
straight thru w/baffle
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
npt 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.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 |
Provided with every order
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Manufacturer
CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC
CAGE: 91816
CORONA
, CA
, 92878-5101
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-001-0037
What is the NIIN of the NSN 4820-00-001-0037?
The National Item Identification Number (NIIN) of the NSN 4820-00-001-0037 is 00-001-0037
When the NSN 4820-00-001-0037 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sun, Sep 24, 1972
Does the NSN 4820-00-001-0037 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-001-0037 contain any hazardous material?
No data in HMIRS
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