Model: W420

Check Valve

Properties:

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Maximum Operating Temp

550.0 degrees fahrenheit single response

Connection Style

Plain, optional end (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded external pipe all ends

Mounting Position

Horizontal

Maximum Operating Pressure

200.0 pounds per square inch single response

Material

Copper alloy body lining

Material

Copper alloy body

Media For Which Designed

Water-oil-gas single response

Style Designator

Straight thru

NSN

4820-01-485-4749

Part Number

W420

Description

Valve,check

CAGE

63686

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.

Part W420 NSN 4820-01-485-4749

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05487

FIIG:

A530B0

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: 8481301090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over