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NSN: 4820-00-001-6204
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Cross Reference These part numbers have the same form, fit, and function of 2404-004

Item Number Cage
1LL22F3-40S 8Z296
2404-004 00124

Characteristic Codes 2404-004 spec. code meanings

Code Translation
ADQZ The number of end connections included in the item.
AAFZ The basic material of which the body is fabricated.
AAQL The style designation indicating the configuration that most nearly corresponds to the appearance of the body.
ADQR The center to center distance.
ABFF Items furnished as accessories which are not specified elsewhere.
AEWF An indication of whether or not a filter is included.
ACKM A narrative description of the type of end connection.
ACKN The style designation indicating the configuration that most nearly corresponds to the appearance of the end.
ACLL 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.
ACLJ Designates the thread diameter, series/type, and number of threads per specific measurement scale.
ADQV The element, compound, or mixture of which the flow control device is fabricated.
ADQU The part that controls the flow through the item.
ACPE Indicates whether or not the fourth end is identical with the first, second, or third end.
AEVZ The maximum pressure of the media on the inlet side at which an item is designed to operate.
ACKL The type of service with which the item is designed to be used.
ADZJ The means other than the end connection/s/ by which the item may be mounted.
AEVA The minimum to maximum limits of outlet pressure of the item.
AEWA The set /nonadjustable/ pressure of the media on the outlet side.
AAJP Consists of plating, dip, and/or coating that cannot be wiped off. plating and/or coating is any chemical and/or metallic additive, electrochemical, or mild mechanical process which protects the outside surface.
AEVP The means used to manually adjust the item.
AEVN Indicates the basic design type used for regulating the item.
ADZH Indicates the type of renewable seating ring in the item.
ACSH The element, compound, or mixture of which the seating surfaces are fabricated.
ACLR Indicates whether or not the second end is identical to the first end.
ABEP The element, compound, or mixture of which the stem is fabricated, excluding any surface treatment.
AZKQ A value which expresses the degree of heat or cold as applied to the operation, or limitation of operation, of an item.
ACMX Indicates whether or not the third end is identical with first or second end.
AEVR The means of providing resistance to the media passing through a valve, whereby the valve is actuated to regulate the flow.
AEVQ The seat design of the valve stem.

2404-004 Fluid Pressure Regulating Valve

Mfr. Cage 00124


ADQZ End Connection Quantity
AAFZ Body Material
Aluminum alloy
AAQL Body Style
Straight thru
ADQR Center To Center Distance
1.688 inches
ABFF Furnished Items
Adjustment stem
AEWF Filter
Not included
ACKM First End Connection Type
Threaded internal pipe
ACKN First End Style Designator
ACLL First End Thread Direction
ACLJ First End Thread Size And Series/type Designator
0.375-18 npt
ADQV Flow Control Device Material
ADQU Flow Control Device
Piston, free type
ACPE Fourth End Relationship With Preceding Ends
Identical with first end
AEVZ Maximum Inlet Pressure Rating
4000.0 pounds per square inch
ACKL Media For Which Designed
ADZJ Mounting Facility
AEVA Outlet Pressure Range
+1000.0/+4000.0 pounds per square inch
AEWA Outlet Pressure Setting
2500.0 pounds per square inch
AAJP Outside Surface Treatment
AEVP Manual Control Method
AEVN Regulation Type
Manual, double stage
ADZH Renewable Seat Ring Type
ACSH Seat Material
Rubber, buna-n
ACLR Second End Relationship With First End
ABEP Stem Material
AZKQ Temp Rating
200.0 deg fahrenheit
ACMX Third End Relationship With Preceding Ends
Identical with first end
AEVR Valve Loading Method
AEVQ Valve Stem Design
Single seat

Technical Definition

Valve, Regulating, Fluid Pressure, also referenced with federal logistics item name code 27565 - A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. it is designed for use with compressed gas(es) and various liquids and may include gauges. it may be inline or cartridge (manifold) design. excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.
National Stock Number (NSN) 4820-00-001-6204

Last Modified: 02/08/2017