Model: 31

Pipe Flange

Properties:

Groove Depth
0.312 inches
Groove Width
0.468 inches
Bolt Circle Diameter
5.000 inches
Flange Diameter
6.500 inches
Thickness
0.750 inches
Pipe Size For Which Designed
2.000 inches
Bolt Hole Quantity
8
Bolt Hole Diameter
0.750 inches
Raised Face Height
0.062 inches
Raised Face Diameter
3.625 inches
Neck Height
1.875 inches
Flange Section Style
Raised face, welding neck
Groove Cross-sectional Shape
Trapezoidal
Groove Pitch Diameter
3.250 inches
Face Seating Surface Condition
Serrated
Maximum Operating Pressure And Media For Which Designed
300.0 pounds per square inch steam
Maximum Operating Tempurature And Media For Which Designed
850.0 degrees fahrenheit steam
Material
Steel
Style Designator
Round, one bolt hole circle
NSN
4730-00-962-7513
Part Number
31
Description
Flange,pipe
CAGE
78824

An item solid or split into halves, having a threaded or unthreaded hole for the purpose of connecting or retaining a pipe, tube, or hose fitting. The face of the flange may be smooth, grooved, or serrated and may be drilled for connecting bolts or studs. If the item is unthreaded, the pipe or tube may be retained by welding, brazing, compression, or the like. Excludes flange, pipe, blind; ferrule, grooved clamp coupling; and adapter (as modified).

Part 31 NSN 4730-00-962-7513

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03798
FIIG:
A23300
Concept No.:
App. Key:
B
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

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Schedule B and Export
  • Schedule B: 7307912000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Flanges of iron or nonalloy steel

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