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Compression Helical Spring

Model / MPN: 28720 | NSN: 5360-00-337-4797
ITAR Registered seal

An open coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, designed to provide resistance to compression forces. Excludes springs designed for thermal actuation (springs in which the torsion forces are designed to be counteracted by changes in temperature) and spring, reinforcing, hose.

Product Details
NATO Stock Number
5360-00-337-4797
Sold in multiples of
20 EA
DEMIL
NO
Inside Diameter
Between 0.257 inches and 0.267 inches
End Style
E4 spring end, squared and ground both ends
End Style
Spring end, squared and ground both ends
Bore Diameter
Between 0.348 inches and 0.358 inches
Spring Free Length
0.404 inches
Accommodated Rod Diameter
Between 0.233 inches and 0.243 inches
Coil Quantity
4.5
Load Rating
Between 2.000 pounds and 2.500 pounds
Spring Solid Length
0.117 inches
Coil Helix Direction
Right-hand or left-hand
Spring Deflection Rate
9.140 pounds per inch
Spring Free Outside Diameter
Between 0.309 inches and 0.319 inches
Spring Length Under Load
0.158 inches
Material
Steel comp 302
Material Specification
Qq-w-432, cond b federal specification single material response
Surface Treatment
Passivate
Style Designator
Cylindrical
28720 Series Parts

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28720 Cross Reference