Model: 820-2178554-4

Check Valve

Properties:

Pipe Size Accommodated

1.000 inches 1st end

Flow Control Device

Disk

Disk Loading Method

Weight

Connection Style

Beveled (pipe) 1st end

Valve Operation Method

Automatic

Connection Type

Butt weld pipe 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Criticality Code Justification

Zzzy

Material

Steel comp 304 body

Media For Which Designed

Steam single response

Style Designator

Straight thru

Reference Number Differentiating Characteristics

As differentiated by material in accordance with activity hxquality control, manufacturing and testing specifications

NSN

4820-00-764-1586

Part Number

820-2178554-4

Description

Valve,check

CAGE

53711

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 820-2178554-4 NSN 4820-00-764-1586

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:

77.5

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