Model: 406-3-4

Check Valve

Properties:

Pipe Size Accommodated
0.750 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Connection Style
Plain, optional end (pipe) 1st end
Connection Type
Threaded internal pipe 1st end
Thready Qty Per Inch (tpi)
14 1st end
Maximum Operating Pressure
125.0 pounds per square inch single response
Thread Size
0.750 inches 1st end
Material
Copper alloy seat
Material
Copper alloy stem
Material
Copper alloy body
Material Specification
Qq-c-390, alloy b5 federal specification single material response seat
Material Specification
Qq-c-390, alloy b5 federal specification single material response stem
Material Specification
Qq-c-390, alloy b5 federal specification single material response body
Media For Which Designed
Water-oil-gas single response
Thread Series Designator
Npt 1st end
NSN
4820-00-127-3545
Part Number
406-3-4
Description
Valve,check
CAGE
98518

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 406-3-4 NSN 4820-00-127-3545

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

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Schedule B and Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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