Safety Relief Valve
D559A4D42PS1
(NSN) National Stock Number
4820-00-009-5209
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
3a 1st end thread class, right-hand 1st end thread direction, poppet flow control device, spring disk loading method, 280.0 deg fahrenheit single response maximum operating temp, -40.0 deg fahrenheit minimum operating temp
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | 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
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.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.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.Minimum Operating Temp
-40.0 deg fahrenheit
Details
The minimum temperature at which the item is designed to operate.Connection Style
plain (tube) 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 tube 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
0.437 inches 1st end
Details
A designation that is used for the purpose of general identification of the thread.Opening Pressure Setting
42.0 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Material
aluminum alloy 2024 body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
aluminum alloy 2024 flow control device 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 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
acetylene 2nd response
Details
The type of media for which the item is designed.Media For Which Designed
air 1st response
Details
The type of media for which the item is designed.Media For Which Designed
ammonia, gaseous 3rd response
Details
The type of media for which the item is designed.Media For Which Designed
hydrogen 5th response
Details
The type of media for which the item is designed.Media For Which Designed
refrigerant 12 4th response
Details
The type of media for which the item is designed.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
unjf 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.Furnished Items And Quantity
1 deflector cap
Details
The name and number of those parts furnished with the item of supply that have not been specified elsewhere.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| D559A-4D-42 | 91816 | 6 | - | 3 | 2 | - | AX |
| D559A4D42PSI | 91816 | 3 | - | 5 | 9 | - | KE |
| 247ASC1527-002 | 30003 | 5 | - | 5 | 2 | - | KE |
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
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 4820-00-009-5209
What is the NIIN of the NSN 4820-00-009-5209?
The National Item Identification Number (NIIN) of the NSN 4820-00-009-5209 is 00-009-5209
When the NSN 4820-00-009-5209 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, Aug 4, 1972
Does the NSN 4820-00-009-5209 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-009-5209 contain any hazardous material?
No data in HMIRS
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