Stop-Check Valve

694883-103

694883-103
(NSN) National Stock Number
4820-00-353-7638
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
05486
Schedule B Code
8481309000
Summary

3a all ends thread class, right-hand all ends thread direction, 0.700 inches offset distance, poppet flow control device, packing retaining bonnet type, spring disk loading method

DAC HCC DMIL RNCC
6 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

INC FIIG Concept Condition
05486 A530B0 1 2
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.
Offset Distance
0.700 inches
Details None.
Flow Control Device
poppet
Details The part that controls the flow through the item.
Bonnet Type
packing retaining
Details Indicates the type of housing on the item that accommodates the stem packing or spring.
Disk Loading Method
spring
Details The means of closing the item when inlet pressure decreases.
Maximum Operating Temp
275.0 deg fahrenheit single response
Details The maximum temperature at which the item is rated to operate for an extended period of time.
Connection Style
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 Facility
threaded fastener
Details The facility for mounting the item.
Mounting Position
horizontal or vertical
Details The installed position for which the item is designed.
Maximum Operating Pressure
3000.0 pounds per square inch single response
Details The maximum pressure at which the item is rated for operation.
Nominal Thread Size
0.437 inches all ends
Details A designation that is used for the purpose of general identification of the thread.
Material
aluminum alloy 2024 body
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel comp 440c flow control device
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel comp 630 seat
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Media For Which Designed
fuel/oil, hydrocarbon 1st response
Details The type of media for which the item is designed.
Media For Which Designed
hydraulic fluid, petroleum base 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.
Surface Treatment Document And Classification
mil-a-8625 mil spec single treatment response
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Style Designator
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
2C9552K 99240 1 - 3 2 - KE
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

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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 4820-00-353-7638
What is the NIIN of the NSN 4820-00-353-7638?
The National Item Identification Number (NIIN) of the NSN 4820-00-353-7638 is 00-353-7638
When the NSN 4820-00-353-7638 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Wed, Feb 6, 1974
Does the NSN 4820-00-353-7638 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-353-7638 contain any hazardous material?
No data in HMIRS

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