Model: 52-90F 3-400/3-400-M51 2IN

Vent-check Valve

Properties:

Flow Control Device
Ball
Bolt Hole Quantity
4 all ends
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal
Valve Size
2.000 inches
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
6.000 inches all ends
Face To Face Distance
8.000 inches
Thickness
0.500 inches all ends
Bolt Hole Diameter
0.625 inches all ends
Bolt Circle Diameter
4.750 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy body
Material
Nickel alloy flow control device
Style Designator
Straight through flanged ends
NSN
4820-01-382-6605
Part Number
52-90F 3-400/3-400-M51 2IN
Description
Valve,vent-check
CAGE
09032

A dual purpose marine valve used primarily with shipboard cargo tanks and bulkheads. It acts both as a vent valve, to relieve vacuum and pressure, and a check valve, to prevent cargo contamination. It is equipped with an internal flame screen and/or a protective mesh and may include a hinged cover.

Part 52-90F 3-400/3-400-M51 2IN NSN 4820-01-382-6605

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
52995
FIIG:
A530B0
Concept No.:
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
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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