Safety Relief Valve
559A-1M-90
(NSN) National Stock Number
4820-00-006-4010
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
Right-hand 1st end thread direction, poppet flow control device, spring disk loading method, 250.0 deg fahrenheit single response maximum operating temp, plain (pipe) 1st end connection style, automatic valve operation 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
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
250.0 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
0.125 inches 1st end
Details
A designation that is used for the purpose of general identification of the thread.Opening Pressure Setting
90.0 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Special Features
pop-off type
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
aluminum alloy body lining
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
qq-a-628,alloy2024 fed spec single material response body lining
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 note: to be used for valve bodies of one section only.
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.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| 559A-1M-90 | 91816 | 3 | - | 3 | 2 | - | AX |
| 7LV221-90 | 26044 | 3 | - | 3 | 2 | - | AX |
| 632869 | 56232 | 1 | - | D | 9 | - | AX |
| 632869-10 | 56232 | 3 | - | 5 | 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
FAQs
Frequently asked questions for NSN 4820-00-006-4010
What is the NIIN of the NSN 4820-00-006-4010?
The National Item Identification Number (NIIN) of the NSN 4820-00-006-4010 is 00-006-4010
When the NSN 4820-00-006-4010 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Mon, Jun 19, 1972
Does the NSN 4820-00-006-4010 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-006-4010 contain any hazardous material?
No data in HMIRS
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