Model: 21T187-4-4D

Tube Tee

Properties:

Thread Class
3a 2nd end
Thread Class
3a 1st end
Thread Class
3b 3rd end
Maximum Operating Temp
135.0 degrees celsius single response
End Application
Aircraft application
Connection Style
Flareless (tube) 1st end
Connection Style
Flareless (tube) 2nd end
Connection Style
Swivel nut w/ loose or integral clinch sleeve (tube) 3rd end
Leg Length
0.961 inches 1st end and 1.006 inches 1st end
Leg Length
0.961 inches 2nd end and 1.006 inches 2nd end
Leg Length
0.961 inches 3rd end and 1.006 inches 3rd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Connection Type
Threaded internal tube 3rd end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Seat Angle
12.0 degrees all ends
Outside Diameter Tube Accommodated
0.250 inches all ends
Material
Aluminum alloy 7075
Material Specification
Qq-a-367, t73 federal specification single material response
Media For Which Designed
Aeronautical fluid single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2, class 2 military specification single treatment response
Thread Series Designator
Unjf all ends
NSN
4730-00-127-8746
Part Number
21T187-4-4D
Description
Tee,tube
CAGE
00624

A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The connections have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or are unthreaded and designed to accommodate a tube. It may have side inlet(s). It is used as a junction at the intersection of a tube or tube fitting.

Part 21T187-4-4D NSN 4730-00-127-8746

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03809
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:
--
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:
Equipment for Aircraft

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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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