Model: 12-20-8 520428

Tube To Boss Tee

Properties:

Thread Class
2a all ends
Connection Style
Double threaded section w/ gasket and locknut sealing (boss) 2nd end
Connection Style
Gasket seal (tube) 1st end
Connection Style
Gasket seal (tube) 3rd end
Leg Length
1.550 inches 3rd end
Leg Length
1.750 inches 1st end
Leg Length
2.400 inches 2nd end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 3rd end
Thready Qty Per Inch (tpi)
12 1st end
Thready Qty Per Inch (tpi)
12 2nd end
Thready Qty Per Inch (tpi)
16 3rd end
Maximum Operating Pressure
3125.0 pounds per square inch single response
Thread Size
1.188 inches 1st end
Thread Size
1.625 inches 2nd end
Thread Size
0.812 inches 3rd end
Outside Diameter Tube Accommodated
0.500 inches 3rd end
Outside Diameter Tube Accommodated
0.750 inches 1st end
Material
Steel
Surface Treatment
Zinc or cadmium and chromate
Thread Series Designator
Un all ends
Furnished Items And Quantity
2 preformed packing and 1 locknut and 1 flat washer
Specification Data
81343-j1453 professional/industrial association standard
Nondefinitive Specification/std Data
6 figure
NSN
4730-01-364-4415
Part Number
12-20-8 520428
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 12-20-8 520428 NSN 4730-01-364-4415

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
4.0 X 0.0 X 0.0
Paclk Weight:
2.0000lbs
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:
051420
UFC:
29090
LTL:
RATING VARIABLE
LCL:
--
WCC:
736
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7307992000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Other fittings nesoi of iron or nonalloy steel

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