Check Valve
634043-1
(NSN) National Stock Number
4820-00-203-9383
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05487
Schedule B Code
8481309000
Summary
3a all ends thread class, right-hand all ends thread direction, poppet flow control device, spring disk loading method, 500.0 deg fahrenheit single response maximum operating temp, flared (tube) all ends connection style
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 6 | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | ZZ |
Identification
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 05487 | A530B0 | 1 | 1 |
Specifications
Thread Class
3a 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
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
500.0 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) 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 external tube all ends
Details
Indicates the type of connection/s/.Mounting Position
horizontal
Details
The installed position for which the item is designed.Maximum Operating Pressure
225.0 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.Seat Angle
37.0 degrees all ends
Details
The angle of the end surface upon which the mated surface seats.Opening Pressure Setting
1.0 pounds per square inch
Details
The predetermined pressure at which the item is calibrated to open.Nominal Outside Diameter Tube Accommodated
0.375 inches all ends
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Material
aluminum alloy overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.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 2nd 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.Style Designator
straight thru
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
unjf 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 |
|---|---|---|---|---|---|---|---|
| P7-526 | 91816 | 2 | - | 3 | 2 | - | SE |
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 |
|---|---|---|---|
| 29300 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 576 | Z | 9 |
Certified Supplier
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Manufacturer
LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY
CAGE: 98897
MARIETTA
, GA
, 30063-0001
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-203-9383
What is the NIIN of the NSN 4820-00-203-9383?
The National Item Identification Number (NIIN) of the NSN 4820-00-203-9383 is 00-203-9383
When the NSN 4820-00-203-9383 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-203-9383 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-203-9383 contain any hazardous material?
No data in HMIRS
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