Check Valve
633573-2
(NSN) National Stock Number
4820-00-202-5591
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, disk flow control device, spring disk loading method, external seat for gasket seal (boss) all ends connection style, automatic valve operation method
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | KE |
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
disk
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.Connection Style
external seat for 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 external boss all ends
Details
Indicates the type of connection/s/.Mounting Position
horizontal or vertical
Details
The installed position for which the item is designed.Thread Quantity Per Inch
12 all ends
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Nominal Thread Size
1.312 inches all ends
Details
A designation that is used for the purpose of general identification of the thread.Nominal Outside Diameter Tube Accommodated
1.000 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 body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
aluminum alloy flow control device and rubber synthetic flow control device
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
aluminum alloy seat
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.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
un 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 |
|---|---|---|---|---|---|---|---|
| 4-648-76N1 | 92003 | X | - | 3 | 2 | - | XX |
| 4-648-76N1 | 45681 | 5 | - | 5 | 9 | - | KE |
| SP4-648-76N | 45681 | 5 | - | 5 | 9 | - | KE |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | A | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| - | - | - | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | - | - | - |
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 4820-00-202-5591
What is the NIIN of the NSN 4820-00-202-5591?
The National Item Identification Number (NIIN) of the NSN 4820-00-202-5591 is 00-202-5591
When the NSN 4820-00-202-5591 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-202-5591 contain any precious metals?
Does not contain precious metal
Does the NSN 4820-00-202-5591 contain any hazardous material?
No data in HMIRS
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