Model: 4-6403

Fluid Pressure Regulating Valve

Properties:

Body Material

Brass

Body Style

Angle

Stem Material

Brass

Furnished Items

Automatic relief valve

Media For Which Designed

Air

First End Connection Type

Threaded internal pipe

First End Style Designator

Plain

First End Thread Size And Series/type Designator

1/4-18 npt

First End Thread Direction

Right-hand

Seat Material

Nonmetallic composition

Flow Control Device

Stem and integral disk

Flow Control Device Material

Brass and nonmetallic composition

End Connection Quantity

Renewable Seat Ring Type

Threaded

Outlet Pressure Range

+0.0/+500.0 pounds per square inch

Outlet Pressure Range

+0.0 to 500.0 pounds per square inch

Regulation Type

1st stage automatic, 2nd stage manual

Manual Control Method

Wheel

Valve Stem Design

Single seat

Valve Loading Method

Spring

Maximum Inlet Pressure Rating

5000.0 pounds per square inch

Outlet Pressure Accuracy Rating

Not rated

Filter

Not included

NSN

4820-00-618-2500

Part Number

4-6403

Description

Valve,regulating,fluid Pressure

CAGE

00723

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.

Part 4-6403 NSN 4820-00-618-2500

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

27565

FIIG:

A21100

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8481809015
SITC: 74780
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level