Part Number 631B4-18-27

Safety Relief Valve

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
631b4-18-27
Demil:
No
Shelf Life:
UOM:
NIIN:
000900979

Part Information
The end connection identified as the second end is the valve inlet

NSN
National Stock Number:
4820-00-090-0979 4820000900979
TXT
Description:
Safety Relief Valve
INC
INC
Item Name Code:
05488
MRC:
A measurement of the pipe size the item will accommodate.AAAR
Pipe Size Accommodated:
0.125 inches 2nd end
MRC:
A measurement of the pipe size the item will accommodate.AAAR
Pipe Size Accommodated:
0.125 inches 1st end
MRC:
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.AAJF
Thread Direction:
Right-hand 2nd end
MRC:
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.AAJF
Thread Direction:
Right-hand 1st end
MRC:
The part that controls the flow through the item.ADQU
Flow Control Device:
Poppet
MRC:
Indicates the type of housing on the item that accommodates the stem packing or spring.ADSR
Bonnet Type:
Inside screw
MRC:
The means by which the bonnet is attached to the item.ADST
Bonnet Attachment Method:
Integral
MRC:
The means of closing the item when inlet pressure decreases.ADSU
Disk Loading Method:
Spring
MRC:
The maximum temperature at which the item is rated to operate for an extended period of time.AEHZ
Maximum Operating Temp:
180.0 degrees fahrenheit single response
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
Grumman aircraft model a10
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
G46b plain (pipe) 2nd end
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
G9 plain, optional en (pipe) 1st end
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
Plain (pipe) 2nd end
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
Plain, optional en (pipe) 1st end
MRC:
The means used to control the operation of the valve.AQLR
Valve Operation Method:
Automatic
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded external pipe 2nd end
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded internal pipe 1st end
MRC:
Those features,not otherwise specified,which may be required for proper functioning of the item.CBBL
Features Provided:
Pressure tight outlet side
MRC:
The minimum to maximum pressures at which the item may be set to open.CQCY
Adjustable Pressure Range:
+115.0/+250.0 pounds per square inch
MRC:
The minimum to maximum pressures at which the item may be set to open.CQCY
Adjustable Pressure Range:
+115.0 to 250.0 pounds per square inch
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
3100.0 pounds per square inch single response
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.125 inches 1st end
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.125 inches 2nd end
MRC:
The predetermined pressure at which the item is calibrated to open.CSDC
Opening Pressure Setting:
200.0 pounds per square inch
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Copper alloy seat
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Copper alloy body
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Stainless steel flow control device
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Aisi416 assn standard single material response flow control device
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Fuel/oil, hydrocarbon 1st response
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Oil, hydraulic 2nd response
MRC:
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.SFTT
Surface Treatment:
Passivate
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Err-090
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Angle
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Anpt 1st end
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Anpt 2nd end

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