Model: AS21905

Tube To Boss Tee

Properties:

Thread Class
3a all ends
End Application
Used on chinook helicopter ch-47
Connection Style
External seat for gasket seal (boss) 3rd end
Connection Style
Flareless (tube) 1st end
Connection Style
Flareless (tube) 2nd end
Leg Length
1.719 inches all ends and 1.766 inches all ends
Leg Length
1.719 inches and 1.766 inches all ends
Connection Type
Threaded external boss 3rd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Thready Qty Per Inch (tpi)
12 all ends
Thread Size
1.312 inches all ends
Seat Angle
12.0 degrees 1st end
Seat Angle
12.0 degrees 2nd end
Outside Diameter Tube Accommodated
1.000 inches 1st end
Outside Diameter Tube Accommodated
1.000 inches 2nd end
Material
Aluminum alloy 2014
Material
Aluminum alloy 7075
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2 military specification single treatment response
Thread Series Designator
Unj all ends
Specification Data
96906-ms21905 government standard
Specification Data
81343-as21905 manufacturers standard
NSN
4730-00-640-0822
Part Number
AS21905
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 AS21905 NSN 4730-00-640-0822

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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:
051400
UFC:
29700
LTL:
77.5
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7609000000
  • SITC: 68427
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Aluminum tube or pipe fittings (couplings,elbows sleeves)

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