Safety Relief Valve
633XB-2-8-2
(NSN) National Stock Number
4820-00-289-4389
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05488
Schedule B Code
8481400000
Summary
0.375 inches 2nd end nominal pipe size accommodated, 3a 1st end thread class, right-hand 1st end thread direction, right-hand 2nd end thread direction, disk flow control device, inside spring bonnet type
| 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
0.375 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
disk
Details
The part that controls the flow through the item.Bonnet Type
inside spring
Details
Indicates the type of housing on the item that accommodates the stem packing or spring.Bonnet Attachment Method
integral
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
180.0 deg fahrenheit single response
Details
The maximum temperature at which the item is rated to operate for an extended period of time.Connection Style
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
pressure tight outlet side
Details
Those features,not otherwise specified,which may be required for proper functioning of the item.Thread Quantity Per Inch
16 1st end
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Thread Quantity Per Inch
18 2nd end
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Adjustable Pressure Range
+10.0 to 50.0 pounds per square inch
Details
The minimum to maximum pressures at which the item may be set to open.Maximum Operating Pressure
450.0 pounds per square inch single response
Details
The maximum pressure at which the item is rated for operation.Nominal Thread Size
0.375 inches 2nd end
Details
A designation that is used for the purpose of general identification of the thread.Nominal Thread Size
0.750 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.Nominal Outside Diameter Tube Accommodated
0.500 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.Material
copper alloy body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
copper alloy seat
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel corrosion resisting flow control device
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Media For Which Designed
water-oil-gas single response
Details
The type of media for which the item is designed.Style Designator
angle
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
anpt 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 |
|---|---|---|---|---|---|---|---|
| 633XB-2-8-2 | 09990 | 5 | - | 3 | 2 | - | ZZ |
| 633-2-8 | 86768 | 5 | - | 5 | 9 | - | AX |
| 633XB2-8-2 | 86768 | 5 | - | 5 | 9 | - | AX |
| HL11251PC27 | 86768 | X | - | 5 | 9 | - | XX |
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 |
|---|---|---|---|
| - | 576 | Z | 9 |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- Genuine Manufacturers Parts
- 100% Product Inspection
- 7 Year Sales Record Retention
- Fast On-Time Delivery
- HAZMAT Certified
- Global Shipping
Manufacturer
CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS
CAGE: 72352
BRECKSVILLE
, OH
, 44141-3205
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 4820-00-289-4389
What is the NIIN of the NSN 4820-00-289-4389?
The National Item Identification Number (NIIN) of the NSN 4820-00-289-4389 is 00-289-4389
When the NSN 4820-00-289-4389 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-289-4389 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-289-4389 contain any hazardous material?
No data in HMIRS
Can't Find It
If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.
Similar Products