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NSN: 4820-00-001-6159
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Cross Reference These part numbers have the same form, fit, and function of 2c8140-4

Item Number Cage
2C8140-4 99240

Characteristic Codes 2C8140-4 spec. code meanings

Code Translation
AHNC The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
AWLS Indicates the type of connection/s/.
ADSU The means of closing the item when inlet pressure decreases.
ADQU The part that controls the flow through the item.
MDCL The specification, standard, or manufacturers reference, and the classification designation, such as class, condition, temper, and the like, that identifies the material.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
CQGM The maximum pressure at which the item is rated for operation.
MEDA The type of media for which the item is designed.
AZGM The facility for mounting the item.
BBJX The installed position for which the item is designed.
CWFD The nominal length of a straight line which passes through the center of the accommodated tube, and terminates at the outside circumference.
CQJX A designation that is used for the purpose of general identification of the thread.
MDCL The specification, standard, or manufacturers reference, and the classification designation, such as class, condition, temper, and the like, that identifies the material.
CQRB The angle of the end surface upon which the mated surface seats.
STYL The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
STDC The specification, standard, or manufacturers reference, and the classification designation, such as type, class, grade, and the like, that identifies the surface treatment material.
SFTT 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.
AAJD A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
AAJF 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.
CMLP The number of threads on the item per linear inch measured on a line parallel to the thread axis.
THSD A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
AQLR The means used to control the operation of the valve.

2C8140-4 Check Valve

Mfr. Cage 99240

Specification

Thread Size: 1/2"

AHNC Connection Style
Flared (tube) all ends
AWLS Connection Type
Threaded external tube all ends
ADSU Disk Loading Method
Spring
ADQU Flow Control Device
Poppet
MDCL Material Spec
Qq-s-763 class 4400 fed spec single material response flow control device
MATT Material
Aluminum alloy seat
MATT Material
Steel flow control device
CQGM Maximum Operating Pressure
3000.0 pounds per square inch single response
MEDA Media For Which Designed
Oil, hydraulic single response
AZGM Mounting Facility
Bulkhead
BBJX Mounting Position
Horizontal or vertical
CWFD Nominal Outside Diameter Tube Accommodated
0.250 inches all ends
CQJX Nominal Thread Size
0.438 inches all ends
MDCL Material Spec
Qq-a-267, alloy 2024, t351 fed spec single material response seat
CQRB Seat Angle
37.0 degrees all ends
STYL Style Designator
Straight thru
STDC Surface Treatment Spec
Mil-a-8625,ty 2 mil spec single treatment response
SFTT Surface Treatment
Anodize
AAJD Thread Class
3a all ends
AAJF Thread Direction
Right-hand all ends
CMLP Thready Qty Per Inch (tpi)
20 all ends
THSD Thread Series Designator
Unf 1st end
AQLR Valve Operation Method
Automatic

Technical Definition

Valve, Check, also referenced with federal logistics item name code 05487 - 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.
National Stock Number (NSN) 4820-00-001-6159

Last Modified: 02/14/2017