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Worldwide distributor of NSN parts and consumables located in the USA.

Tube To Boss Tee

Model / MPN: AN783-4 | NSN: 4730-00-278-8407
ITAR Registered seal

A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The tube connectio (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.

Product Details
NATO Stock Number
4730-00-278-8407
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a 2nd end
Thread Class
3a 1st end
Thread Class
3a 1st end bulkhead
Thread Class
3b 3rd end
Connection Style
Flared (tube) 1st end
Connection Style
Flared (tube) 2nd end
Connection Style
Gasket seal (boss) 3rd end
Leg Length
1.188 inches 2nd end
Leg Length
1.750 inches 1st end
Leg Length
0.750 inches 3rd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Connection Type
Threaded internal boss 3rd end
Thread Size
0.438 inches 1st end bulkhead
Thread Size
0.438 inches all ends
Seat Angle
37.0 degrees 1st end
Seat Angle
37.0 degrees 2nd end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Outside Diameter Tube Accommodated
0.250 inches 2nd end
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unjf all ends
Thread Series Designator
Unjf 1st end bulkhead
Specification Data
88044-an783 government standard
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M318T038L Tee, Tube To Boss 51 EA 07/23/2018
SPE7M319T1376 Tee, Tube To Boss 54 EA 11/13/2018
SPE7M320T2034 Tee, Tube To Boss 87 EA 11/25/2019

Pricing and Availability

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AN783-4 Cross Reference
  • AS1031
  • AS4875/1
  • AN783-4
  • AN783-4
  • AN783-4
  • AN783-4
  • AN783-4
  • AS1031-040404
  • AN783-4
  • AN783-4
  • AN783-4
  • AS1031
  • AS4875/1
  • AN783-4
  • AN783-4
  • AN783-4
  • AN783-4
  • AN783-4
  • AS1031-040404
  • AN783-4
  • AN783-4
  • AN783-4
  • AS1031
  • AS4875/1
  • AN783-4
  • AN783-4
  • AN783-4
  • AN783-4
  • AN783-4
  • AS1031-040404
  • AN783-4
  • AN783-4
  • AN783-4