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Torsion Helical Spring

Model / MPN: 139C7823 | NSN: 5360-00-580-9519
ITAR Registered seal

An open-or close-wound coil spring consisting of one or more helical coils, wound from different shapes and types of material and finished at the ends, designed to exert pressure in a rotating direction around the coil axis. Excludes springs designed for thermal actuation (springs in which the torsion forces are counteracted by changes in temperature) and spring, reinforcing, hose.

Product Details
NATO Stock Number
5360-00-580-9519
Sold in multiples of
5 EA
DEMIL
NO
Inside Diameter
0.973 inches
End Style
Straight bend end (left) first end
End Style
Straight bend end (right) second end
Spring Free Length
1.490 inches
Center Section Width
Between 1.430 inches and 1.510 inches
Coil Quantity
5-1/2
Coil Helix Direction
Right-hand or left-hand
Spring Free Outside Diameter
1.173 inches
Coil Axis To Center Section Distance
Between 2.143 inches and 2.377 inches
End Angular Relationship
End w/lh helix of coil angled to center section and end w/rh helix of coil angled to center section
End Length
2.143 inches both ends and 2.377 inches both ends
End Length From First Bend To Second Bend Or End
0.550 inches second end
End Length From First Bend To Second Bend Or End
0.960 inches first end
Center Style
Square type
Material
Steel uns k08500
Material Specification
Qq-w-470 federal specification single material response
Surface Treatment
Phosphate
Surface Treatment Specification
Mil-std-171 finish no. 5.3.1.2 or 5.3.2.2 military standard single treatment response
Style Designator
Single torsion right hand
Supplementary Features
Loop off-centered with an inside dia. Of 0.202 in. Min. And 0.266 in. Max. An outside dia. Of 0.434 in.
139C Series Parts

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139C7823 Cross Reference
  • 139C7823
  • 139C7823
  • 139C7823