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

Tube Elbow

Model / MPN: 4939-018 | NSN: 4730-01-035-2217
ITAR Registered seal

A fitting that forms an angle of less than 180 degrees (3.141 radians) from a straight flow. Both connecting ends have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. It may have side or heel inle (s) . See also elbow, pipe and connector, multiple, fluid pressure line.

Product Details
NATO Stock Number
4730-01-035-2217
Sold in multiples of
DEMIL
NO
Thread Class
3a 2nd end
Thread Class
3a 1st end
Connection Style
Flared (tube) 1st end
Leg Length
1.921 inches 2nd end and 1.967 inches 2nd end
Leg Length
2.781 inches 1st end and 2.827 inches 1st end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Thready Qty Per Inch (tpi)
12 1st end
Thready Qty Per Inch (tpi)
12 2nd end
Thread Size
1.312 inches 1st end
Thread Size
1.312 inches 2nd end
Seat Angle
37.0 degrees 1st end
Seat Angle
37.0 degrees 2nd end
Union Joint Location
First end
Flow Angle
90.0 degrees
Material
Steel comp 1137 elbow or steel comp 1141 elbow or steel comp 4130 elbow or steel comp 4140 elbow
Material Specification
Qq-s-637 federal specification 1st material response elbow or qq-s-637 federal specification 2nd material response elbow or mil-s-6758 military specification 3rd material response elbow or mil-s-5626 military specification 4th material response elbow
Surface Treatment
Cadmium inside
Surface Treatment
Cadmium outside
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response inside
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response outside
Thread Series Designator
Un 1st end
Thread Series Designator
Un 2nd end
4939 Series Parts

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4939-018 Cross Reference