Model: MD346-20012

Stop-check Valve

Special Features:

Valve stem is cam lever actuated manual spring assist off; exhaust port relieves pressure on out port in off position

Properties:

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Bonnet Type

Packing retaining

Disk Loading Method

Spring

Connection Style

Plain, optional end (pipe) all ends

Valve Operation Method

Manual

Connection Type

Threaded internal pipe all ends

Mounting Facility

Bracket

Mounting Position

Horizontal or vertical

Thread Size

0.125 inches all ends

Material

Aluminum alloy

Style Designator

Angle

Thread Series Designator

Nptf all ends

Specification Data

11331-w-219c4 manufacturers source control

NSN

4820-00-227-8746

Part Number

MD346-20012

Description

Valve,stop-check

CAGE

34623

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Part MD346-20012 NSN 4820-00-227-8746

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05486

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:

0.4000lbs

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:

050855

UFC:

29290

LTL:

70.0

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8481309000
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel