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NSN: 4820-00-001-6203
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Part Numbers

Item Number Item Description
1301F Valve, Regulating, Fluid Pressure
636-0-8303 Valve, Regulating, Fluid Pressure
636-1-8303 Valve, Regulating, Fluid Pressure

Master Requirement Codes

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.
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.
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.
AEWA The set /nonadjustable/ pressure of the media on the outlet side.
AEVN Indicates the basic design type used for regulating 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.
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.

636-0-8303 Fluid Pressure Regulating Valve

Cage 37871

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.

Technical Characteristics

End Connection Quantity (ADQZ):
Body Material (AAFZ):
Body Style (AAQL):
Filter (AEWF):
Not included
First End Connection Type (ACKM):
Threaded internal pipe
First End Style Designator (ACKN):
First End Thread Direction (ACLL):
First End Thread Size And Series/type Designator (ACLJ):
0.250-18 npt
Flow Control Device Material (ADQV):
Rubber, synthetic
Flow Control Device (ADQU):
Maximum Inlet Pressure Rating (AEVZ):
600.0 pounds per square inch
Media For Which Designed (ACKL):
Outlet Pressure Setting (AEWA):
150.0 pounds per square inch
Regulation Type (AEVN):
Automatic single stage
Seat Material (ACSH):
Second End Relationship With First End (ACLR):
Temp Rating (AZKQ):
175.0 deg fahrenheit nominal
Third End Relationship With Preceding Ends (ACMX):
Identical with first end
Valve Loading Method (AEVR):

National Stock Number (NSN)