Model: 554

Pipe Flange

Properties:

Bolt Circle Diameter
18.750 inches
Flange Diameter
21.000 inches
Thickness
1.312 inches
Pipe Size For Which Designed
14.000 inches
Bolt Hole Quantity
12
Bolt Hole Diameter
1.125 inches
Raised Face Height
0.062 inches
Raised Face Diameter
16.250 inches
Neck Height
0.875 inches
Flange Section Style
Raised face, raised neck
Face Seating Surface Condition
Serrated
Maximum Operating Pressure And Media For Which Designed
150.0 pounds per square inch steam
Maximum Operating Tempurature And Media For Which Designed
500.0 degrees fahrenheit steam
Material
Steel
Style Designator
Round, one bolt hole circle
NSN
4730-00-826-5147
Part Number
554
Description
Flange,pipe
CAGE
14959

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 554 NSN 4730-00-826-5147

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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