Model: 4-1750FSG

Check Valve

Special Features:

Cover held open or closed by toggle bolt

Properties:

Flow Control Device

Ball

Bolt Hole Quantity

8 all ends

End Application

Strategic sealift conversion ships class

Valve Operation Method

Automatic or manual

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Facility

Bracket

Mounting Position

Vertical

Valve Size

4.000 inches

Outside Diameter

9.000 inches all ends

Face To Face Distance

9.625 inches

Thickness

0.938 inches all ends

Bolt Hole Diameter

0.625 inches all ends

Bolt Circle Diameter

7.500 inches all ends

Flange Face Design

Plain all ends

Part Name Assigned By Controlling Agency

Inverted vent check valve

Material

Copper flow control device

Material

Steel body

Media For Which Designed

Water, fresh 1st response

Media For Which Designed

Water, salt 2nd response

Surface Treatment

Zinc

Style Designator

Straight thru

NSN

4820-01-434-3376

Part Number

4-1750FSG

Description

Valve,check

CAGE

79128

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 4-1750FSG NSN 4820-01-434-3376

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:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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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