Model: 4C2640-1

Check Valve

Properties:

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Disk Loading Method

Spring

Connection Style

External seat for gasket seal (boss) 2nd end

Connection Style

Plain (tube) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external boss 2nd end

Connection Type

Threaded external tube 1st end

Mounting Position

Horizontal or vertical

Thready Qty Per Inch (tpi)

20 2nd end

Maximum Operating Pressure

-65.0 pounds per square inch 1st response

Maximum Operating Pressure

450.0 pounds per square inch 2nd response

Thread Size

0.438 inches 1st end

Thread Size

0.563 inches 2nd end

Seat Angle

45.0 degrees 1st end

Material

Stainless steel body

Material

Steel flow control device

Media For Which Designed

Fuel/oil, hydrocarbon single response

Style Designator

Straight thru

Thread Series Designator

Unjf 1st end

Thread Series Designator

Unjs 2nd end

NSN

4820-01-171-4391

Part Number

4C2640-1

Description

Valve,check

CAGE

99240

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 4C2640-1 NSN 4820-01-171-4391

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8481302090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of steel