Model: 749939

Check Valve

Properties:

Flow Control Device
Disk
Disk Loading Method
Spring
Bolt Hole Quantity
4 1st end
Bolt Hole Quantity
4 2nd end
Width
3.885 inches 2nd end
Width
4.010 inches 1st end
Length
4.010 inches 1st end
Length
4.010 inches 2nd end
Valve Operation Method
Automatic
Flange Shape
Rectangular with holes 1st end
Connection Type
Flange 2nd end
Connection Type
Flange 1st end
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
120.0 pounds per square inch single response
Face To Face Distance
3.865 inches
Thickness
0.185 inches 1st end
Thickness
0.185 inches 2nd end
Bolt Hole Diameter
0.265 inches 1st end
Bolt Hole Diameter
0.265 inches 2nd end
Center To Center Distance Between Bolt Holes Along Length
3.250 inches 1st end
Center To Center Distance Between Bolt Holes Along Length
3.250 inches 2nd end
Center To Center Distance Between Bolt Holes Along Width
3.250 inches 1st end
Flange Face Design
Plain 1st end
Flange Face Design
Plain 2nd end
Material
Aluminum alloy 384.0
Media For Which Designed
Fuel/oil, hydrocarbon single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2 military specification single treatment response
Style Designator
Straight thru
NSN
4820-00-353-7642
Part Number
749939
Description
Valve,check
CAGE

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 749939 NSN 4820-00-353-7642

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:
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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