Model: 668059-3

Fluid Pressure Regulating Valve

Special Features:

3.5 gpm max flow capacity at max rated inlet and outlet pressures

Properties:

Body Material

Aluminum alloy

Outside Surface Treatment

Anodized

Body Style

Tee

Furnished Items

Automatic relief valve

Media For Which Designed

Hydrocarbon fuels and oils

First End Connection Type

Threaded internal boss

First End Style Designator

Gasket seal

First End Thread Size And Series/type Designator

7/16-20 unf

First End Thread Class

First End Thread Direction

Right-hand

Second End Relationship With First End

Identical

Third End Relationship With Preceding Ends

Identical with first end

Seat Material

Steel, corrosion resisting

Packing Material

Rubber, synthetic

Flow Control Device

Piston, free type

Flow Control Device Material

Steel, corrosion resisting

End Connection Quantity

Mounting Facility

Flange

Outlet Pressure Range

+1000.0/+1550.0 pounds per square inch

Regulation Type

Automatic single stage

Valve Stem Design

Single seat

Valve Loading Method

Spring

Maximum Inlet Pressure Rating

3000.0 pounds per square inch

Filter

Not included

Tempurature Rating

Between -65.0 degrees fahrenheit and 160.0 degrees fahrenheit

NSN

4820-00-888-8382

Part Number

668059-3

Description

Valve,regulating,fluid Pressure

CAGE

98897

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 668059-3 NSN 4820-00-888-8382

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:

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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