Model: 4C2660-3

Check Valve

Special Features:

The end connection identified above as the second end is the valve inlet

Properties:

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Disk Loading Method

Spring

Maximum Operating Temp

-65.0 degrees fahrenheit 1st response

Maximum Operating Temp

450.0 degrees fahrenheit 2nd response

Connection Style

External seat for gasket seal (boss) all ends

Valve Operation Method

Automatic

Connection Type

Threaded external boss all ends

Mounting Position

Horizontal

Thready Qty Per Inch (tpi)

20 all ends

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.563 inches 2nd end

Thread Size

0.719 inches 1st end

Material

Steel comp 630 body

Material Specification

Ams 5643 assn standard single material response body

Media For Which Designed

Hydraulic fluid, petroleum base single response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-s-5002 military specification single treatment response

Style Designator

Straight thru

Thread Series Designator

Unjs all ends

NSN

4820-00-348-8281

Part Number

4C2660-3

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 4C2660-3 NSN 4820-00-348-8281

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:

0.1000lbs

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