Model: 51-12-90

Tube Tee

Special Features:

Weapon system essential

Properties:

Thread Class
3a all ends
End Application
Torpedo systems, mk46; cryogenic systems; rowpu, 3k gph; missile, thomahawk; ticonderoga class cg 947); support equipment, mx peacekeeper missile; support equipment, b-1 aircraft; arleigh burke class ddg; kidd class ddg
Connection Style
Flareless (tube) all ends
Leg Length
0.719 inches all ends
Connection Type
Threaded external tube all ends
Thread Size
0.438 inches all ends
Seat Angle
20.0 degrees all ends
Criticality Code Justification
Feat
Outside Diameter Tube Accommodated
0.250 inches all ends
Material
Steel comp 316
Material Specification
66 federal standard single material response
Surface Treatment
Passivate
Thread Series Designator
Unf all ends
Furnished Items And Quantity
3 short coupling nut and 6 ferrule sleeve
NSN
4730-00-684-3796
Part Number
51-12-90
Description
Tee,tube
CAGE
31949

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 51-12-90 NSN 4730-00-684-3796

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:
A
ESD:
ESD:
MMAC:
SX
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
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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