Model: 423

Steam Air Venting Valve

Properties:

Maximum Operating Pressure
30.0 pounds per square inch
Valve Connection Size
0.125 inches
Valve Type
Quick air vent
Valve Water Pressure Position
Open
Valve Air Return Prevention
Not required
Valve Shape
Straight
Material
Brass
Material
Copper alloy
Surface Treatment
Nickel
Surface Treatment
Nickel
NSN
4520-00-951-7684
Part Number
423
Description
Valve,air Venting,steam
CAGE

An automatic valve designed to relieve, automatically, accumulated air in various types of steam heating systems.

Part 423 NSN 4520-00-951-7684

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04906
FIIG:
T114-A
Concept No.:
App. Key:
AB
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:
050855
UFC:
29290
LTL:
70.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481100090
  • SITC: 74710
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Pressure-reducing valves, nesoi

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