Model: H-2911 PIECE 21

Pipe Flange

Properties:

Bolt Circle Diameter
3.250 inches
Flange Diameter
4.620 inches
Recess Diameter
1.090 inches
Recess Depth
0.440 inches
Thickness
0.620 inches
Pipe Size For Which Designed
0.750 inches
Bolt Hole Quantity
4
Bolt Hole Diameter
0.750 inches
Raised Face Diameter
1.880 inches
Neck Height
0.380 inches
Flange Section Style
Raised and recessed face, raised neck
Face Seating Surface Condition
Machined
Maximum Operating Pressure And Media For Which Designed
300.0 pounds per square inch any acceptable
Material
Steel
Material Specification
Astma182, gradef11 assn standard single material response
Style Designator
Round, one bolt hole circle
Specification Data
81349-mil-f-18180 government specification
NSN
4730-01-159-5839
Part Number
H-2911 PIECE 21
Description
Flange,pipe
CAGE
16712

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 H-2911 PIECE 21 NSN 4730-01-159-5839

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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