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Tube To Boss Tee NSN 4730-00-278-8398

Item Description

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.

NSN 4730-00-278-8398 NSN: 4730-00-278-8398

Features and Characteristics

Thread Class
3b 2nd end
End Application
Aircraft, hercules c-130
Connection Style
Gasket seal (boss) 2nd end
Leg Length
0.750 inches 2nd end
Connection Type
Threaded internal boss 2nd end
Thread Size
0.438 inches all ends
Seat Angle
12.0 degrees 1st end
Criticality Code Justification
Feat
Outside Diameter Tube Accommodated
0.250 inches 1st end
Special Features
Used on grumman aircraft, model a10; weapon system essential
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unjf 1st end bulkhead
Specification Data
96906-ms21911 government standard
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
002788398
NSN
4730002788398

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AS21911
Cage Code:
81343
Status:
A
MSDS:
Part Number:
AS18280
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MS21911V4P
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MS21911-4
Cage Code:
96906
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7307992000
  • NAICS: 332919
  • SITC: 67959
  • Description: Other fittings nesoi of iron or nonalloy steel
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 4730-00-278-8398
What are the manufacturers of nsn 4730002788398?
Does this nsn 4730002788398 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730002788398
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.
Does nsn 4730002788398 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730002788398 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730002788398?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22683
FIIG:
A080B0
App. Key:
A
Cond. Code:
1
Status:
A

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