Model: 634131-1

Gaseou Pressure Equalizing Valve

Special Features:

Adjusting screw-ring w/spanner wrench slot at end of valve 3.38 in. L o/l completely closed, 3.75 in. L o/a completely open

Properties:

Body Material
Aluminum alloy, qq-a-225/5, alloy 2017, t4
Outside Surface Treatment
Anodized, mil-a-8625
Body Style
Single connection, straight flow
Tempurature Rating
-70.0 degrees fahrenheit
Tempurature Rating
165.0 degrees fahrenheit
Tempurature Rating
-70.0 degrees fahrenheit and 165.0 degrees fahrenheit
Media For Which Designed
Air or hydrocarbon fuels and oils
Media For Which Designed
Air and hydrocarbon fuels and oils
First End Connection Type
Threaded external tube
First End Style Designator
Flared
First End Outside Diameter Tube Accommodated
1.000 inches
First End Thread Size And Series/type Designator
1.3125-12 unj
First End Thread Class
3a
First End Thread Direction
Right-hand
First End Seat Radius
Between 0.005 inches and 0.015 inches
Flow Control Device
Poppet
Flow Control Device Material
Aluminum alloy, qq-a-225/5, alloy 2017, t4
End Connection Quantity
1
Disk Loading Method
Spring
Valve Venting Design Type
Atmospheric
Valve Relief Design Type
Pressure and vacuum
NSN
4820-00-612-3875
Part Number
634131-1
Description
Valve,pressure Equalizing,gaseou
CAGE
98897

A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude valve, vacuum breaking.

Part 634131-1 NSN 4820-00-612-3875

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
10958
FIIG:
A07100
Concept No.:
1
App. Key:
AP
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:
LA
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:
Z
ACC:
Equipment for Aircraft

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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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