Model: 3-420-01 & 340-M1-01

Vent Valve

Special Features:

Modified from standard 52-95f by being supplied without check ball. Flanges iaw ansi standard commercial specs. Supplied with 40 mesh flame screen

Properties:

Bolt Hole Quantity
8 all ends
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
6.000 inches
Outside Diameter
11.000 inches all ends
Face To Face Distance
19.562 inches
Thickness
0.812 inches all ends
Bolt Hole Diameter
0.875 inches all ends
Bolt Circle Diameter
9.500 inches all ends
Flange Face Design
Plain all ends
Part Name Assigned By Controlling Agency
In-the-line vertical vent check valve less check ball
Material
Steel body
Material Specification
Astm a216 wcb assn standard single material response body
Media For Which Designed
Air single response
NSN
4820-01-521-8812
Part Number
3-420-01 & 340-M1-01
Description
Valve,vent
CAGE
09032

A valve designed to relieve internal pressure from gear housings, automotive axles, differentials, transmissions and the like. May or may not be threaded on one end. For items with relief pressure ratings see valve (1), safety relief.

Part 3-420-01 & 340-M1-01 NSN 4820-01-521-8812

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
35935
FIIG:
A046B0
Concept No.:
1
App. Key:
AA
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:
A
ESD:
A
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481809050
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Other taps, cocks, valves, etc., nesoi

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