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

Tube To Boss Tee

Model / MPN: 8431408-1 | NSN: 4730-00-787-9402
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
4730-00-787-9402
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
2a all ends
Maximum Operating Temp
121.0 degrees celsius single response
End Application
23n ship, ohio class ssn (trident)
Connection Style
External seat for gasket seal (boss) 2nd end
Connection Style
Flared (tube) 1st end
Connection Style
Flared (tube) 3rd end
Leg Length
1.031 inches 2nd end
Leg Length
0.891 inches 1st end
Leg Length
0.891 inches 3rd end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 3rd end
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Seat Angle
37.0 degrees 1st end
Seat Angle
37.0 degrees 3rd end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Outside Diameter Tube Accommodated
0.250 inches 3rd end
Material
Steel comp 316
Media For Which Designed
Hydraulic fluid single response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35, type 2 federal specification single treatment response
Thread Series Designator
Unf all ends
Furnished Items And Quantity
2 tube coupling nut w/sleeve and 1 preformed packing
Specification Data
96906-ms51530 government standard
8431408 Series Parts

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8431408-1 Cross Reference
  • 4-R5BX-SS
  • 06048300
  • 04-R5BX-SS
  • MS51530B4S
  • MS51530A4S
  • 9956107
  • 379659
  • 4R50XSS
  • 4-R5X-SS
  • 4R50XSS
  • 4R50XSS
  • 2265132-3
  • 4-R5X-SS