Narrow Results

  • Outer Diameter (Do) (in)

    • 0.063(78)
    • 0.094(126)
    • 0.098(9)
    • 0.110(9)
    • 0.118(9)
    • 0.120(171)
    • 0.138(36)
    • 0.157(9)
    • 0.177(21)
    • 0.180(318)
    • 0.197(21)
    • 0.217(39)
    • 0.236(24)
    • 0.240(387)
    • 0.248(12)
    • 0.276(39)
    • 0.295(27)
    • 0.300(135)
    • 0.315(9)
    • 0.335(15)
    • 0.354(24)
    • 0.360(435)
    • 0.394(39)
    • 0.420(99)
    • 0.433(36)
    • 0.472(30)
    • 0.500(330)
    • 0.512(24)
    • 0.551(21)
    • 0.591(27)
    • 0.630(9)
    • 0.650(90)
    • 0.669(15)
    • 0.709(21)
    • 0.750(276)
    • 0.787(36)
    • 0.850(87)
    • 0.866(36)
    • 0.945(15)
    • 0.984(21)
    • 1.000(288)
    • 1.102(27)
    • 1.125(81)
    • 1.181(15)
    • 1.250(105)
    • 1.260(12)
    • 1.417(27)
    • 1.500(72)
    • 1.575(15)
    • 1.750(72)
    • 1.772(15)
    • 1.969(15)
    • 2.000(48)
    • 2.165(15)
    to

  • Wire Diameter (d) (in)

    • 0.007(15)
    • 0.008(21)
    • 0.009(21)
    • 0.010(21)
    • 0.011(42)
    • 0.012(21)
    • 0.013(21)
    • 0.014(60)
    • 0.016(57)
    • 0.018(102)
    • 0.020(111)
    • 0.022(150)
    • 0.024(36)
    • 0.025(36)
    • 0.026(114)
    • 0.028(36)
    • 0.029(90)
    • 0.031(204)
    • 0.034(156)
    • 0.035(36)
    • 0.037(210)
    • 0.039(72)
    • 0.041(135)
    • 0.043(36)
    • 0.045(126)
    • 0.047(39)
    • 0.049(144)
    • 0.055(252)
    • 0.058(51)
    • 0.063(165)
    • 0.069(96)
    • 0.071(39)
    • 0.075(117)
    • 0.079(36)
    • 0.085(111)
    • 0.087(36)
    • 0.095(96)
    • 0.098(36)
    • 0.105(93)
    • 0.110(36)
    • 0.115(99)
    • 0.125(117)
    • 0.126(36)
    • 0.135(66)
    • 0.142(36)
    • 0.148(114)
    • 0.157(36)
    • 0.177(108)
    • 0.197(36)
    • 0.207(48)
    to

  • Free Length (L) (in)

    • 0.250(12)
    • 0.310(12)
    • 0.311(3)
    • 0.346(3)
    • 0.374(3)
    • 0.380(36)
    • 0.382(3)
    • 0.390(3)
    • 0.429(3)
    • 0.437(3)
    • 0.440(30)
    • 0.476(6)
    • 0.492(3)
    • 0.496(3)
    • 0.500(54)
    • 0.520(3)
    • 0.531(6)
    • 0.547(3)
    • 0.559(3)
    • 0.591(3)
    • 0.602(3)
    • 0.606(3)
    • 0.618(3)
    • 0.620(90)
    • 0.622(3)
    • 0.626(3)
    • 0.634(3)
    • 0.669(6)
    • 0.673(3)
    • 0.677(3)
    • 0.685(6)
    • 0.689(3)
    • 0.697(3)
    • 0.713(3)
    • 0.748(6)
    • 0.750(105)
    • 0.756(3)
    • 0.772(3)
    • 0.780(3)
    • 0.783(3)
    • 0.795(3)
    • 0.811(6)
    • 0.850(6)
    • 0.854(3)
    • 0.858(3)
    • 0.870(9)
    • 0.880(75)
    • 0.886(3)
    • 0.906(6)
    • 0.945(6)
    • 0.965(3)
    • 0.969(3)
    • 0.984(3)
    • 0.996(3)
    • 1.000(141)
    • 1.008(3)
    • 1.031(3)
    • 1.039(3)
    • 1.059(3)
    • 1.063(3)
    • 1.071(3)
    • 1.091(6)
    • 1.094(3)
    • 1.102(3)
    • 1.118(6)
    • 1.120(111)
    • 1.185(3)
    • 1.189(6)
    • 1.197(3)
    • 1.201(3)
    • 1.205(3)
    • 1.213(3)
    • 1.220(3)
    • 1.236(3)
    • 1.244(3)
    • 1.250(144)
    • 1.283(3)
    • 1.307(3)
    • 1.335(3)
    • 1.339(3)
    • 1.354(3)
    • 1.358(3)
    • 1.370(141)
    • 1.374(6)
    • 1.378(3)
    • 1.390(3)
    • 1.437(3)
    • 1.457(3)
    • 1.461(3)
    • 1.472(3)
    • 1.484(3)
    • 1.496(3)
    • 1.500(150)
    • 1.516(3)
    • 1.535(3)
    • 1.543(3)
    • 1.563(6)
    • 1.587(3)
    • 1.591(3)
    • 1.614(3)
    • 1.622(3)
    • 1.630(3)
    • 1.697(3)
    • 1.705(3)
    • 1.717(3)
    • 1.732(3)
    • 1.736(3)
    • 1.740(3)
    • 1.744(3)
    • 1.750(144)
    • 1.756(3)
    • 1.811(3)
    • 1.874(3)
    • 1.886(3)
    • 1.890(3)
    • 1.898(3)
    • 1.902(3)
    • 1.929(3)
    • 1.941(6)
    • 1.969(6)
    • 1.992(3)
    • 2.000(183)
    • 2.067(3)
    • 2.110(3)
    • 2.118(3)
    • 2.130(3)
    • 2.142(3)
    • 2.177(3)
    • 2.181(6)
    • 2.189(3)
    • 2.201(3)
    • 2.236(3)
    • 2.240(3)
    • 2.250(180)
    • 2.323(3)
    • 2.370(6)
    • 2.386(3)
    • 2.394(3)
    • 2.402(3)
    • 2.425(3)
    • 2.472(3)
    • 2.488(3)
    • 2.492(3)
    • 2.500(201)
    • 2.508(3)
    • 2.531(3)
    • 2.606(3)
    • 2.669(3)
    • 2.677(6)
    • 2.681(3)
    • 2.709(3)
    • 2.713(3)
    • 2.748(6)
    • 2.750(180)
    • 2.768(3)
    • 2.780(3)
    • 2.874(3)
    • 2.921(3)
    • 2.969(3)
    • 2.992(3)
    • 3.000(174)
    • 3.028(3)
    • 3.063(3)
    • 3.075(3)
    • 3.091(3)
    • 3.110(3)
    • 3.122(3)
    • 3.126(3)
    • 3.181(3)
    • 3.250(9)
    • 3.252(3)
    • 3.260(3)
    • 3.378(3)
    • 3.394(3)
    • 3.398(3)
    • 3.409(3)
    • 3.433(6)
    • 3.453(3)
    • 3.488(3)
    • 3.500(156)
    • 3.531(3)
    • 3.551(3)
    • 3.626(3)
    • 3.772(3)
    • 3.803(3)
    • 3.831(3)
    • 3.858(3)
    • 3.882(3)
    • 3.937(6)
    • 4.000(147)
    • 4.016(6)
    • 4.055(3)
    • 4.134(3)
    • 4.213(3)
    • 4.252(3)
    • 4.291(3)
    • 4.370(6)
    • 4.409(3)
    • 4.449(3)
    • 4.488(3)
    • 4.500(153)
    • 4.528(3)
    • 4.724(3)
    • 4.750(3)
    • 4.803(6)
    • 4.843(6)
    • 5.000(171)
    • 5.157(3)
    • 5.354(6)
    • 5.433(6)
    • 5.472(3)
    • 5.500(90)
    • 5.591(3)
    • 5.748(3)
    • 5.945(3)
    • 6.000(87)
    • 6.063(9)
    • 6.142(3)
    • 6.181(3)
    • 6.417(3)
    • 6.500(63)
    • 6.535(3)
    • 6.772(3)
    • 6.929(3)
    • 7.000(60)
    • 7.047(3)
    • 7.205(3)
    • 7.441(3)
    • 7.500(36)
    • 7.717(3)
    • 7.874(3)
    • 7.953(3)
    • 8.000(42)
    • 8.268(3)
    • 8.701(3)
    • 8.780(3)
    • 8.937(3)
    • 9.000(33)
    • 9.567(3)
    • 9.724(3)
    • 9.843(3)
    • 10.000(6)
    • 10.709(3)
    • 11.417(18)
    • 11.929(3)
    • 13.386(3)
    • 14.843(3)
    to

  • Spring Rate (lb/in)

    • 0.08(4)
    • 0.10(2)
    • 0.12(2)
    • 0.14(1)
    • 0.17(6)
    • 0.20(5)
    • 0.24(1)
    • 0.25(18)
    • 0.29(2)
    • 0.30(10)
    • 0.33(24)
    • 0.40(12)
    • 0.42(30)
    • 0.50(53)
    • 0.58(36)
    • 0.60(19)
    • 0.67(36)
    • 0.70(18)
    • 0.75(32)
    • 0.80(18)
    • 0.83(34)
    • 0.90(16)
    • 0.92(28)
    • 1.00(59)
    • 1.08(24)
    • 1.10(14)
    • 1.17(34)
    • 1.20(21)
    • 1.25(30)
    • 1.30(12)
    • 1.33(22)
    • 1.40(17)
    • 1.42(32)
    • 1.50(35)
    • 1.58(24)
    • 1.60(11)
    • 1.67(28)
    • 1.70(16)
    • 1.75(24)
    • 1.80(10)
    • 1.83(26)
    • 1.90(12)
    • 1.92(14)
    • 2.00(40)
    • 2.08(30)
    • 2.10(12)
    • 2.17(18)
    • 2.20(13)
    • 2.25(16)
    • 2.30(7)
    • 2.33(18)
    • 2.40(13)
    • 2.42(20)
    • 2.50(29)
    • 2.58(10)
    • 2.60(9)
    • 2.67(26)
    • 2.70(8)
    • 2.75(20)
    • 2.80(9)
    • 2.83(16)
    • 2.90(10)
    • 2.92(10)
    • 3.00(27)
    • 3.08(14)
    • 3.10(5)
    • 3.17(18)
    • 3.20(13)
    • 3.25(12)
    • 3.30(10)
    • 3.33(10)
    • 3.40(8)
    • 3.42(16)
    • 3.50(21)
    • 3.58(8)
    • 3.60(10)
    • 3.67(14)
    • 3.70(7)
    • 3.75(14)
    • 3.80(9)
    • 3.83(18)
    • 3.90(6)
    • 3.92(18)
    • 4.00(19)
    • 4.08(2)
    • 4.10(8)
    • 4.17(12)
    • 4.20(8)
    • 4.25(12)
    • 4.30(4)
    • 4.33(8)
    • 4.40(7)
    • 4.42(14)
    • 4.50(13)
    • 4.58(12)
    • 4.60(9)
    • 4.67(10)
    • 4.70(9)
    • 4.75(4)
    • 4.80(7)
    • 4.83(10)
    • 4.90(1)
    • 4.92(12)
    • 5.00(18)
    • 5.08(4)
    • 5.10(6)
    • 5.17(4)
    • 5.20(4)
    • 5.25(8)
    • 5.30(7)
    • 5.33(10)
    • 5.40(3)
    • 5.42(8)
    • 5.50(18)
    • 5.58(12)
    • 5.60(5)
    • 5.66(16)
    • 5.70(2)
    • 5.75(10)
    • 5.80(5)
    • 5.83(8)
    • 5.90(6)
    • 5.91(4)
    • 6.00(8)
    • 6.08(4)
    • 6.10(2)
    • 6.16(8)
    • 6.20(2)
    • 6.25(10)
    • 6.30(4)
    • 6.33(2)
    • 6.40(5)
    • 6.41(4)
    • 6.50(12)
    • 6.58(16)
    • 6.60(6)
    • 6.66(2)
    • 6.70(6)
    • 6.75(10)
    • 6.80(8)
    • 6.83(4)
    • 6.90(5)
    • 6.91(6)
    • 7.00(8)
    • 7.08(12)
    • 7.10(2)
    • 7.16(2)
    • 7.20(1)
    • 7.25(6)
    • 7.30(2)
    • 7.33(8)
    • 7.40(4)
    • 7.41(12)
    • 7.50(13)
    • 7.60(1)
    • 7.66(8)
    • 7.70(2)
    • 7.75(4)
    • 7.80(4)
    • 7.83(4)
    • 7.90(8)
    • 7.91(6)
    • 8.00(5)
    • 8.08(6)
    • 8.10(5)
    • 8.16(10)
    • 8.20(2)
    • 8.25(10)
    • 8.30(3)
    • 8.33(4)
    • 8.40(2)
    • 8.41(6)
    • 8.50(8)
    • 8.60(1)
    • 8.66(6)
    • 8.70(3)
    • 8.75(8)
    • 8.80(4)
    • 8.83(4)
    • 8.90(6)
    • 8.91(6)
    • 9.00(10)
    • 9.08(2)
    • 9.16(4)
    • 9.20(4)
    • 9.25(6)
    • 9.30(2)
    • 9.33(8)
    • 9.40(2)
    • 9.41(4)
    • 9.50(9)
    • 9.58(4)
    • 9.60(2)
    • 9.66(2)
    • 9.70(3)
    • 9.80(5)
    • 9.83(8)
    • 9.90(5)
    • 9.91(2)
    • 10.00(6)
    • 10.08(2)
    • 10.10(3)
    • 10.16(12)
    • 10.20(1)
    • 10.33(4)
    • 10.40(3)
    • 10.41(6)
    • 10.50(4)
    • 10.58(4)
    • 10.60(2)
    • 10.66(2)
    • 10.70(3)
    • 10.75(6)
    • 10.80(3)
    • 10.83(2)
    • 10.90(1)
    • 10.91(8)
    • 11.00(6)
    • 11.10(3)
    • 11.16(2)
    • 11.20(4)
    • 11.25(2)
    • 11.30(2)
    • 11.33(4)
    • 11.40(3)
    • 11.41(2)
    • 11.50(6)
    • 11.60(1)
    • 11.66(8)
    • 11.75(4)
    • 11.80(4)
    • 11.83(6)
    • 11.90(1)
    • 11.91(2)
    • 12.00(6)
    • 12.08(4)
    • 12.10(1)
    • 12.16(2)
    • 12.20(6)
    • 12.25(4)
    • 12.33(4)
    • 12.40(2)
    • 12.41(4)
    • 12.50(11)
    • 12.58(4)
    • 12.66(2)
    • 12.70(2)
    • 12.75(4)
    • 12.80(1)
    • 12.83(6)
    • 12.90(3)
    • 12.91(6)
    • 13.00(5)
    • 13.10(4)
    • 13.20(2)
    • 13.25(4)
    • 13.33(4)
    • 13.40(1)
    • 13.50(3)
    • 13.60(2)
    • 13.66(4)
    • 13.70(1)
    • 13.75(2)
    • 13.80(2)
    • 13.91(2)
    • 14.00(4)
    • 14.10(2)
    • 14.16(2)
    • 14.20(3)
    • 14.24(2)
    • 14.30(1)
    • 14.33(4)
    • 14.40(2)
    • 14.41(4)
    • 14.50(2)
    • 14.58(2)
    • 14.60(1)
    • 14.70(2)
    • 14.80(2)
    • 14.83(2)
    • 14.90(2)
    • 14.91(6)
    • 14.99(2)
    • 15.00(4)
    • 15.08(4)
    • 15.10(2)
    • 15.16(2)
    • 15.20(1)
    • 15.24(4)
    • 15.30(2)
    • 15.40(3)
    • 15.50(3)
    • 15.58(6)
    • 15.60(2)
    • 15.74(4)
    • 15.83(6)
    • 15.90(2)
    • 15.99(2)
    • 16.00(2)
    • 16.08(2)
    • 16.20(1)
    • 16.24(4)
    • 16.33(2)
    • 16.40(2)
    • 16.41(2)
    • 16.49(2)
    • 16.50(1)
    • 16.70(1)
    • 16.74(2)
    • 16.91(6)
    • 16.99(2)
    • 17.00(1)
    • 17.10(1)
    • 17.20(2)
    • 17.24(4)
    • 17.30(2)
    • 17.33(4)
    • 17.50(1)
    • 17.58(4)
    • 17.74(2)
    • 17.80(1)
    • 17.90(3)
    • 17.91(2)
    • 17.99(6)
    • 18.00(1)
    • 18.10(2)
    • 18.16(2)
    • 18.20(1)
    • 18.30(2)
    • 18.33(4)
    • 18.41(4)
    • 18.66(2)
    • 18.70(3)
    • 18.74(6)
    • 18.90(2)
    • 18.99(2)
    • 19.00(3)
    • 19.20(1)
    • 19.30(1)
    • 19.33(2)
    • 19.41(2)
    • 19.49(4)
    • 19.50(2)
    • 19.58(2)
    • 19.60(1)
    • 19.70(1)
    • 19.80(1)
    • 19.83(4)
    • 19.91(2)
    • 20.08(2)
    • 20.10(1)
    • 20.16(2)
    • 20.24(6)
    • 20.30(3)
    • 20.33(6)
    • 20.40(1)
    • 20.41(2)
    • 20.58(4)
    • 20.66(2)
    • 20.70(2)
    • 20.74(2)
    • 20.80(2)
    • 20.83(4)
    • 20.91(2)
    • 21.10(2)
    • 21.16(4)
    • 21.24(4)
    • 21.30(1)
    • 21.50(1)
    • 21.60(3)
    • 21.80(1)
    • 21.83(2)
    • 21.91(2)
    • 22.00(2)
    • 22.08(4)
    • 22.10(2)
    • 22.40(1)
    • 22.41(2)
    • 22.50(3)
    • 22.57(2)
    • 22.66(2)
    • 22.74(2)
    • 22.80(1)
    • 23.07(4)
    • 23.16(2)
    • 23.20(1)
    • 23.30(1)
    • 23.40(2)
    • 23.49(2)
    • 23.50(1)
    • 23.66(4)
    • 23.74(2)
    • 23.80(2)
    • 23.90(1)
    • 23.91(2)
    • 24.07(4)
    • 24.10(1)
    • 24.16(2)
    • 24.20(1)
    • 24.24(2)
    • 24.30(3)
    • 24.32(2)
    • 24.40(3)
    • 24.41(2)
    • 24.50(1)
    • 24.70(2)
    • 24.74(2)
    • 24.80(1)
    • 24.90(1)
    • 25.00(2)
    • 25.10(1)
    • 25.16(2)
    • 25.24(2)
    • 25.40(2)
    • 25.49(2)
    • 25.50(2)
    • 25.57(2)
    • 25.82(4)
    • 25.99(2)
    • 26.07(2)
    • 26.20(1)
    • 26.30(1)
    • 26.50(2)
    • 26.66(2)
    • 26.74(2)
    • 26.82(2)
    • 26.90(1)
    • 27.10(1)
    • 27.20(1)
    • 27.24(2)
    • 27.30(1)
    • 27.70(2)
    • 27.74(2)
    • 27.80(1)
    • 28.16(2)
    • 28.20(1)
    • 28.24(6)
    • 28.32(2)
    • 28.40(2)
    • 28.49(2)
    • 28.50(1)
    • 28.57(4)
    • 28.70(1)
    • 28.82(2)
    • 28.90(2)
    • 29.00(1)
    • 29.10(1)
    • 29.16(4)
    • 29.20(1)
    • 29.24(2)
    • 29.30(1)
    • 29.41(2)
    • 29.70(1)
    • 29.99(6)
    • 30.20(1)
    • 30.30(1)
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    to

Looped Ends

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SPEC® Looped End Extension Springs are coiled, with loops at the ends for mounting. Standard parts are offered in various materials, but others are available via our engineered services. Higher volume OEM production quantity pricing is available, simply contact us or request a quote. Load P and Spring Rate are +/- 10%, springs should not be extended beyond L1 for optimal service life. Material recommended service temperatures are as follows:

  • Music Wire or Piano Wire (applications up to 121 degrees C / 250 degrees F)
  • Stainless Steel (applications up to 260 degrees C / 500 degrees F)
  • 316SS (applications up to 300 degrees C / 570 degrees F)
See our Spring Anchors for easy mounting of extension springs! Technical terminology is defined in the FAQ section.

1-15 of 3972 Products   Sort by:

  • E0063-007-0250-M

    E00630070250M Looped End Extension Springs

    0.0630.0070.250
    0.5401.000.03
    0.32MWASTM-A228 or AMS-5112
    0.0000000.0020.010

  • E0063-007-0310-M

    E00630070310M Looped End Extension Springs

    0.0630.0070.310
    0.7300.700.03
    0.32MWASTM-A228 or AMS-5112
    0.0000000.0020.012

  • E0063-007-0380-M

    E00630070380M Looped End Extension Springs

    0.0630.0070.380
    0.9300.500.03
    0.32MWASTM-A228 or AMS-5112
    0.0000000.0020.015

  • E0063-007-0440-M

    E00630070440M Looped End Extension Springs

    0.0630.0070.440
    1.1200.400.03
    0.32MWASTM-A228 or AMS-5112
    0.0000000.0020.017

  • E0063-007-0500-M

    E00630070500M Looped End Extension Springs

    0.0630.0070.500
    1.3100.400.03
    0.32MWASTM-A228 or AMS-5112
    0.0000000.0020.020

  • E0063-008-0250-M

    E00630080250M Looped End Extension Springs

    0.0630.0080.250
    0.4602.000.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.010

  • E0063-008-0310-M

    E00630080310M Looped End Extension Springs

    0.0630.0080.310
    0.6001.400.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.012

  • E0063-008-0380-M

    E00630080380M Looped End Extension Springs

    0.0630.0080.380
    0.7501.100.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.015

  • E0063-008-0440-M

    E00630080440M Looped End Extension Springs

    0.0630.0080.440
    0.9100.900.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.017

  • E0063-008-0500-M

    E00630080500M Looped End Extension Springs

    0.0630.0080.500
    1.0500.700.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.020

  • E0063-008-0620-M

    E00630080620M Looped End Extension Springs

    0.0630.0080.620
    1.3400.600.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.024

  • E0063-008-0750-M

    E00630080750M Looped End Extension Springs

    0.0630.0080.750
    1.6400.500.04
    0.45MWASTM-A228 or AMS-5112
    0.0000000.0020.030

  • E0063-009-0250-M

    E00630090250M Looped End Extension Springs

    0.0630.0090.250
    0.4003.700.06
    0.62MWASTM-A228 or AMS-5112
    0.0000000.0020.010

  • E0063-009-0310-M

    E00630090310M Looped End Extension Springs

    0.0630.0090.310
    0.5202.700.06
    0.62MWASTM-A228 or AMS-5112
    0.0000000.0020.012

  • E0063-009-0380-M

    E00630090380M Looped End Extension Springs

    0.0630.0090.380
    0.6502.100.06
    0.62MWASTM-A228 or AMS-5112
    0.0000000.0020.015
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