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

Tube To Hose Elbow

Model / MPN: 8791-20D | NSN: 4730-00-652-4626
ITAR Registered seal

A fitting that forms an angle of less than 180 degrees (3.141 radians) from a straight flow. One connecting end 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 other end has standard hose threads, an incomplete part of a threaded end connection that grips the hose directly, or is unthreaded and designed to accommodate a hose. It may have side or heel inle (s) . See also elbow, hose; connector, multiple, fluid pressure line; and elbow, swivel flange to hose.

Product Details
NATO Stock Number
4730-00-652-4626
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3b 1st end
Maximum Operating Temp
121.0 degrees celsius 1st response
Maximum Operating Temp
54.0 degrees celsius 2nd response
End Application
Helicopter, ch-53a/d/e
Connection Style
Gripping nipple (nose) 2nd end
Connection Style
Swivel nut, flare (tube) style 3 optional end 1st end
Leg Length
2.387 inches 1st end and 2.457 inches 1st end
Leg Length
3.380 inches 2nd end
Connection Type
Threaded external hose gripping 2nd end
Connection Type
Threaded internal tube 1st end
Thready Qty Per Inch (tpi)
12 1st end
Maximum Operating Pressure
500.0 pounds per square inch single response
Thread Size
1.625 inches 1st end
Seat Angle
37.0 degrees 1st end
Flow Angle
90.0 degrees
Inside Diameter Hose Accommodated
1.125 inches 2nd end
Outside Diameter Hose Accommodated
1.437 inches 2nd end
Outside Diameter Tube Accommodated
1.250 inches 1st end
Material
Aluminum alloy 5052 and aluminum alloy 6061
Material Specification
Ww-t-700/4 federal specification single material response or ww-t-700/6 federal specification single material response
Surface Treatment
Anodize inside
Surface Treatment
Anodize outside
Surface Treatment Specification
Mil-a-8625 military specification single treatment response inside
Surface Treatment Specification
Mil-a-8625 military specification single treatment response outside
Thread Series Designator
Unj 1st end
Furnished Items And Quantity
1 hose coupling nut

Pricing and Availability

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8791-20D Cross Reference
  • M83798/3-20
  • MIL-F-83798
  • 136-1090-20D
  • 136-1090-20D
  • 8891-20D
  • MS87020-20
  • 680-20D