Model: MIL-F-20668

Pipe Flange

Special Features:

Material is nickel-copper per qq-n-281 spec; 2 inch, type a, class 1

Properties:

Bolt Circle Diameter
4.438 inches
Flange Diameter
5.562 inches
Thickness
0.562 inches
Pipe Size For Which Designed
2.000 inches
Bolt Hole Quantity
6
Bolt Hole Diameter
0.562 inches
Neck Height
0.438 inches
Flange Section Style
Plain face, raised neck
Screw Thread Series Designator
Npt
Face Seating Surface Condition
Machined
Thready Qty Per Inch (tpi)
11-1/2
Maximum Operating Pressure And Media For Which Designed
100.0 pounds per square inch steam
Thread Size
2.000 inches
Material
Copper alloy
Style Designator
Round, one bolt hole circle
Nondefinitive Specification/std Data
A type and 1 class
NSN
4730-00-256-8588
Part Number
MIL-F-20668
Description
Flange,pipe
CAGE
81349

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 MIL-F-20668 NSN 4730-00-256-8588

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
4.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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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