Model: 4578FNPP

Stop-check Valve

Properties:

Offset Distance

2.250 inches

Flow Control Device

Poppet

Bonnet Type

Inside screw

Bonnet Attachment Method

Bolted

Renewable Seat Ring Type

Threaded

Valve Operation Method

Manual

Flange Shape

Round 1st end

Connection Type

Flange 1st end

Mounting Position

Horizontal

Features Provided

Bonnet packing

Valve Size

1.500 inches

Maximum Operating Pressure

600.0 pounds per square inch single response

Criticality Code Justification

Zzzy

Outside Diameter

6.125 inches 1st end

Face To Face Distance

12.000 inches

Thickness

0.875 inches 1st end

Flange Face Design

Raised straight 1st end

Raised Face Height

0.250 inches 1st end

Raised Face Diameter

2.875 inches 1st end

Material

Nickel alloy 400 body

Material

Nickel alloy 400 stem

Media For Which Designed

Water-oil-gas single response

Style Designator

Straight through w/offset flanged ends

Reference Number Differentiating Characteristics

Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications

NSN

4820-00-187-6698

Part Number

4578FNPP

Description

Valve,stop-check

CAGE

04537

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 4578FNPP NSN 4820-00-187-6698

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:

17.0 X 13.0 X 24.0

Paclk Weight:

101.0000lbs

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

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