Model: 404FG1-4

Check Valve

Properties:

Pipe Size Accommodated
0.250 inches 2nd end
Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Ball
Disk Loading Method
Spring
Maximum Operating Temp
350.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 2nd end
Connection Style
Plain, optional end (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Connection Type
Threaded internal pipe 1st end
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
18 2nd end
Thready Qty Per Inch (tpi)
18 1st end
Maximum Operating Pressure
1000.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Thread Size
0.250 inches 2nd end
Material
Copper alloy seat
Material
Copper alloy body
Material
Steel comp 440c flow control device
Material Specification
Qq-s-763, cond a federal specification single material response flow control device
Media For Which Designed
Fuel/oil, hydrocarbon single response
Style Designator
Straight thru
Thread Series Designator
Anpt 1st end
Thread Series Designator
Anpt 2nd end
NSN
4820-00-441-4876
Part Number
404FG1-4
Description
Valve,check
CAGE
86768

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 404FG1-4 NSN 4820-00-441-4876

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: 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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