Model: 528-20D

Check Valve

Properties:

Flow Control Device

Disk

Disk Loading Method

Spring

Maximum Operating Temp

160.0 degrees fahrenheit 1st response

Maximum Operating Temp

160.0 degrees fahrenheit 2nd response

Valve Operation Method

Automatic

Connection Type

Unthreaded external hose 1st end

Connection Type

Unthreaded external hose 2nd end

Mounting Position

Horizontal

Maximum Operating Pressure

75.0 pounds per square inch 1st response

Maximum Operating Pressure

75.0 pounds per square inch 2nd response

Material

Aluminum alloy body

Material

Aluminum alloy seat

Media For Which Designed

Water, fresh 2nd response

Media For Which Designed

Air 1st response

Style Designator

Straight thru

NSN

4820-00-142-2981

Part Number

528-20D

Description

Valve,check

CAGE

45681

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 528-20D NSN 4820-00-142-2981

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

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