Safety Relief Valve
1030-20
(NSN) National Stock Number
4820-00-768-6349
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
3b all ends thread class, right-hand all ends thread direction, piston flow control device, spring disk loading method, 3.5 gallons per minute valve discharge flow rate, 160.0 deg fahrenheit single response maximum operating temp
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | AX |
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
3b all ends
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand all ends
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
piston
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.Valve Discharge Flow Rate
3.5 gallons per minute
Details
The rated valve discharge capacity per unit of time.Maximum Operating Temp
160.0 deg fahrenheit single response
Details
The maximum temperature at which the item is rated to operate for an extended period of time.Connection Style
gasket seal(boss) all ends
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 internal boss all ends
Details
Indicates the type of connection/s/.Mounting Facility
threaded fastener
Details
The facility for mounting the item.Features Provided
pressure tight outlet side
Details
Those features,not otherwise specified,which may be required for proper functioning of the item.Maximum Operating Pressure
1760.0 pounds per square inch single response
Details
The maximum pressure at which the item is rated for operation.Nominal Thread Size
0.562 inches all ends
Details
A designation that is used for the purpose of general identification of the thread.Opening Pressure Setting
1580.0 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Material
aluminum alloy body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel flow control device
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel seat
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel stem
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Media For Which Designed
hydraulic fluid, phosphate-ester base single response
Details
The type of media for which the item is designed.Style Designator
angle w/offset
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
unf all ends
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 |
|---|---|---|---|---|---|---|---|
| 4820PL0816865 | 9009H | 9 | - | 6 | 9 | - | WP |
| 1030-20 | 98897 | 5 | - | 3 | 2 | - | ZZ |
| 695862 | 98897 | 5 | - | 5 | 9 | - | AX |
| 695862-1 | 98897 | 5 | - | 5 | 9 | - | 9Z |
| 1030-20-1580 | 94874 | 5 | - | 5 | 2 | - | ZZ |
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 4820-00-768-6349
What is the NIIN of the NSN 4820-00-768-6349?
The National Item Identification Number (NIIN) of the NSN 4820-00-768-6349 is 00-768-6349
When the NSN 4820-00-768-6349 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Mon, Jan 1, 1962
Does the NSN 4820-00-768-6349 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-768-6349 contain any hazardous material?
No data in HMIRS
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