Model: 3173-4C

Tube To Boss Tee

Properties:

Thread Class
3a 2nd end
Thread Class
3a 1st end
Thread Class
3a 1st end bulkhead
Thread Class
3b 3rd end
Maximum Operating Temp
135.0 degrees celsius single response
End Application
Aircraft application
Connection Style
External seat for gasket seal (boss) 2nd end
Connection Style
Flareless (tube) 1st end
Connection Style
Gasket seal (boss) 3rd end
Leg Length
1.180 inches 2nd end
Leg Length
0.836 inches 3rd end
Leg Length
1.914 inches 1st end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal boss 3rd end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches 3rd end
Thread Size
0.562 inches 1st end
Thread Size
0.562 inches 1st end bulkhead
Thread Size
0.562 inches 2nd end
Seat Angle
12.0 degrees 1st end
Outside Diameter Tube Accommodated
0.375 inches 1st end
Material
Steel comp 304
Material Specification
66 federal standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072, e300, ty2 military specification single treatment response outside
Surface Treatment Specification
Mil-s-5002 military specification single treatment response inside
Thread Series Designator
Unjf all ends
Thread Series Designator
Unjf 1st end bulkhead
Specification Data
81343-as1001 government standard
Nondefinitive Specification/std Data
1 style
NSN
4730-00-201-3228
Part Number
3173-4C
Description
Tee,tube To Boss
CAGE
99473

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 3173-4C NSN 4730-00-201-3228

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

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:
M
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: 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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