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Mechanical Extension Springs are coiled products, in a variety of materials and forms. Extension springs are attached to two components from both ends of the spring, and when the components pull apart, the spring tries to pull the components together again. Extension Springs are wound to oppose extension.

Dependant on the application's load requirements, the springs initial tension can be manipulated. They are often tightly wound in the no-load position and have hooks, eyes, or spring anchors at the ends to attach to the components. Each spring is designed within proper stress levels and manufacturing limits.

Extension Spring - Music Wire
Extension Spring - Stainless Steel
Unit of Measure
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Item #

IntegrationID

Height

Depth

Width

Outside Dia (In.)

Wire Dia (In.)

Free Length (In.)

Spring Rate (lbs./In.)

Initial Tension (lbs)

Ends

Quantity
M12501154000 N/A
206574
N/A 4.000 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 4.00 Inch N/A 12.1 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501154500 N/A
206575
N/A 4.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 4.50 Inch N/A 9.2 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501155000 N/A
206576
N/A 5.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 5.00 Inch N/A 7.5 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501155500 N/A
206577
N/A 5.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 5.50 Inch N/A 6.3 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501156000 N/A
206578
N/A 6.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 6.00 Inch N/A 5.4 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501156500 N/A
206579
N/A 6.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 6.50 Inch N/A 4.8 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501157000 N/A
206580
N/A 7.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 7.00 Inch N/A 4.3 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501157500 N/A
206581
N/A 7.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.115 Inch N/A 7.50 Inch N/A 3.8 lbs/in N/A 3.96 Pound N/A Full Twist Loop
M12501353500 N/A
206582
N/A 3.500 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 3.50 Inch N/A 38.5 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501354000 N/A
206583
N/A 4.000 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 4.00 Inch N/A 27.2 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501354500 N/A
206584
N/A 4.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 4.50 Inch N/A 21.1 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501355000 N/A
206585
N/A 5.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 5.00 Inch N/A 17.2 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501355500 N/A
206586
N/A 5.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 5.50 Inch N/A 14.5 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501356000 N/A
206587
N/A 6.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 6.00 Inch N/A 12.5 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501356500 N/A
206588
N/A 6.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 6.50 Inch N/A 11.0 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501357000 N/A
206589
N/A 7.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 7.00 Inch N/A 9.9 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501357500 N/A
206590
N/A 7.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.135 Inch N/A 7.50 Inch N/A 8.9 lbs/in N/A 6.18 Pound N/A Full Twist Loop
M12501483500 N/A
206591
N/A 3.500 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 3.50 Inch N/A 60.9 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501484000 N/A
206592
N/A 4.000 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 4.00 Inch N/A 43.5 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501484500 N/A
206593
N/A 4.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 4.50 Inch N/A 33.9 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501485000 N/A
206594
N/A 5.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 5.00 Inch N/A 27.7 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501485500 N/A
206595
N/A 5.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 5.50 Inch N/A 23.4 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501486000 N/A
206596
N/A 6.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 6.00 Inch N/A 20.3 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501486500 N/A
206597
N/A 6.50 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 6.50 Inch N/A 17.9 lbs/in N/A 7.95 Pound N/A Full Twist Loop
M12501487000 N/A
206598
N/A 7.00 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 1.250 Inch N/A 0.148 Inch N/A 7.00 Inch N/A 16.0 lbs/in N/A 7.95 Pound N/A Full Twist Loop
Unit of Measure
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