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Extension Helical Spring

Model / MPN: 13857-1 | NSN: 5360-00-784-6498
ITAR Registered seal

An open-or close-coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, so designed to provide resistance to pulling forces. The close-coiled springs may incorporate the special feature of initial tension created between the coils when wound so that an initial load must be applied to separate them. Excludes spring, reinforcing, hose.

Product Details
NATO Stock Number
Sold in multiples of
Inside Diameter
0.446 inches
Opening Width
0.188 inches both ends
End Style
Reduced hook both ends
Coil Quantity
Design Type
Coil Helix Direction
Right-hand or left-hand
Spring Free Outside Diameter
0.562 inches
Hook Radius
0.125 inches both ends
Coil To Hook Inside Length
0.375 inches both ends
Stainless steel
Style Designator

Pricing and Availability

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13857-1 Cross Reference