Model: 4M2028

Check Valve

Properties:

Flow Control Device
Poppet
Maximum Operating Temp
135.0 degrees celsius single response
Minimum Operating Temp
-54.0 degrees celsius
Valve Operation Method
Automatic
Mounting Position
Horizontal
Maximum Operating Pressure
690.0 kilopascals single response
Face To Face Distance
42.0 millimeters
Material
Steel comp 440c flow control device
Material
Titanium alloy body
Material Specification
Ams 4965, 6al4v assn standard single material response body
Material Specification
Qq-s-763, 440c federal specification single material response flow control device
Media For Which Designed
Hydraulic fluid, petroleum base single response
Surface Treatment
Anodize and passivate
Surface Treatment Specification
Ams2488, type ii assn standard single treatment response and mil-s-5002 military specification single treatment response
Style Designator
Straight through flanged ends
NSN
4820-01-537-7724
Part Number
4M2028
Description
Valve,check
CAGE
99240

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 4M2028 NSN 4820-01-537-7724

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:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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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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