Model: AS4311K20

Tube To Boss Tee

Special Features:

Kc120c20; machined groove in flared ends to accommodate seal ring per kc103

Properties:

Thread Class
3a 3rd end
Thread Class
3a 1st end
Connection Style
Flared (tube) 1st end
Connection Style
Flared (tube) 3rd end
Connection Style
Gasket seal (boss) 2nd end
Leg Length
1.719 inches 2nd end
Leg Length
2.250 inches 3rd end
Leg Length
3.031 inches 1st end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 3rd end
Connection Type
Threaded internal boss 2nd end
Thready Qty Per Inch (tpi)
12 1st end
Thready Qty Per Inch (tpi)
12 2nd end
Thready Qty Per Inch (tpi)
12 3rd end
Thread Size
1.625 inches 1st end
Thread Size
1.625 inches 2nd end
Thread Size
1.625 inches 3rd end
Seat Angle
37.0 degrees 1st end
Seat Angle
37.0 degrees 3rd end
Outside Diameter Tube Accommodated
1.250 inches 1st end
Outside Diameter Tube Accommodated
1.250 inches 3rd end
Material
Steel comp 316
Material Specification
Qq-s-763, cond a federal specification single material response
Surface Treatment
Passivate
Thread Series Designator
Un 3rd end
Thread Series Designator
Un 1st end
Thread Series Designator
Un 2nd end
NSN
4730-01-268-9478
Part Number
AS4311K20
Description
Tee,tube To Boss
CAGE
81343

A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The tube connection(s) has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or is unthreaded and designed to accommodate a tube. The boss connection(s) has external or internal machine threads (straight threads other than pipe or hose series), and is designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side inlet(s). It is used as a junction at the intersection of a tube or fitting and a boss or boss fitting on items such as a tank, housing, valve fitting, or the like. See also tee, tube; and tee, pipe to tube. Excludes connector, multiple, fluid pressure line.

Part AS4311K20 NSN 4730-01-268-9478

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22683
FIIG:
A080B0
Concept No.:
App. Key:
A
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: 7307994000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Other fittings nesoi of alloy steel not stainless

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