Model: 4004-18

Check Valve

Special Features:

Dual 4-inch flapper

Properties:

Flow Control Device

Disk

Bolt Hole Quantity

8 all ends

Maximum Operating Temp

300.0 degrees fahrenheit single response

Minimum Operating Temp

-65.0 degrees fahrenheit

End Application

Sh-2g super seasprite helicopter

Valve Operation Method

Automatic

Maximum Operating Pressure

15.0 pounds per square inch single response

Outside Diameter

5.000 inches all ends

Bolt Hole Diameter

0.223 inches all ends

Bolt Circle Diameter

4.625 inches all ends

NSN

4820-01-491-2311

Part Number

4004-18

Description

Valve,check

CAGE

34163

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 4004-18 NSN 4820-01-491-2311

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: 8481301010
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

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