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.:
1
App. Key:
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
594
TCC:
Z
SHC:
9
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

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