Model: 4R31

Check Valve

Special Features:

With 0.312 in. Diameter steel ball and 0.125 in. Diameter 0.562 in. Lg dowel pin (straight)

Properties:

Thread Direction

Right-hand 2nd end

Flow Control Device

Ball

Connection Style

Plain (pipe) 2nd end

Connection Style

Plain (tube) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 2nd end

Connection Type

Unthreaded internal tube 1st end

Mounting Position

Horizontal

Thread Size

0.562 inches 2nd end

Outside Diameter Tube Accommodated

0.438 inches 1st end

Material

Steel

Style Designator

Straight thru

Thread Series Designator

Npt 2nd end

NSN

4820-00-359-6432

Part Number

4R31

Description

Valve,check

CAGE

61510

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 4R31 NSN 4820-00-359-6432

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

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