Precision Springs | McMaster-Carr

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	Spring Type Spring Type

	Compression
	Extension
	Disc

	System of Measurement System of Measurement

	Length Length

	OD OD

	ID ID

	End Type End Type


Closed and Ground	Hook

Loop	Closed

	Material Material

Stainless Steel

	Wire Diameter Wire Diameter

	Rate Rate

10.079 lbs./in.

10.163 lbs./in.

10.197 lbs./in.

10.329 lbs./in.

10.413 lbs./in.

10.464 lbs./in.

10.521 lbs./in.

10.579 lbs./in.

10.662 lbs./in.

10.746 lbs./in.

10.829 lbs./in.

10.912 lbs./in.

10.996 lbs./in.

11.108 lbs./in.

11.162 lbs./in.

11.246 lbs./in.

11.329 lbs./in.

11.412 lbs./in.

11.495 lbs./in.

11.662 lbs./in.

11.698 lbs./in.

11.745 lbs./in.

11.829 lbs./in.

11.912 lbs./in.

11.995 lbs./in.

12.079 lbs./in.

12.162 lbs./in.

12.171 lbs./in.

12.209 lbs./in.

12.232 lbs./in.

12.245 lbs./in.

12.326 lbs./in.

12.328 lbs./in.

12.412 lbs./in.

12.419 lbs./in.

12.495 lbs./in.

12.578 lbs./in.

12.662 lbs./in.

12.745 lbs./in.

12.828 lbs./in.

12.912 lbs./in.

13.022 lbs./in.

13.116 lbs./in.

13.161 lbs./in.

13.245 lbs./in.

13.328 lbs./in.

13.411 lbs./in.

13.509 lbs./in.

13.661 lbs./in.

13.745 lbs./in.

13.911 lbs./in.

13.994 lbs./in.

14.161 lbs./in.

14.244 lbs./in.

14.263 lbs./in.

14.328 lbs./in.

14.411 lbs./in.

14.578 lbs./in.

14.602 lbs./in.

14.744 lbs./in.

14.789 lbs./in.

14.827 lbs./in.

14.911 lbs./in.

14.994 lbs./in.

15.077 lbs./in.

15.161 lbs./in.

15.244 lbs./in.

15.577 lbs./in.

15.626 lbs./in.

15.694 lbs./in.

15.744 lbs./in.

15.827 lbs./in.

15.994 lbs./in.

16.077 lbs./in.

16.083 lbs./in.

16.208 lbs./in.

16.244 lbs./in.

16.327 lbs./in.

16.493 lbs./in.

16.639 lbs./in.

16.743 lbs./in.

16.993 lbs./in.

17.077 lbs./in.

17.243 lbs./in.

17.326 lbs./in.

17.576 lbs./in.

17.743 lbs./in.

17.993 lbs./in.

18.159 lbs./in.

18.285 lbs./in.

18.326 lbs./in.

18.409 lbs./in.

18.659 lbs./in.

18.743 lbs./in.

18.902 lbs./in.

18.992 lbs./in.

19.326 lbs./in.

19.409 lbs./in.

19.492 lbs./in.

19.576 lbs./in.

19.825 lbs./in.

19.909 lbs./in.

20.075 lbs./in.

20.159 lbs./in.

20.242 lbs./in.

20.325 lbs./in.

20.409 lbs./in.

20.575 lbs./in.

20.658 lbs./in.

20.742 lbs./in.

20.825 lbs./in.

20.908 lbs./in.

21.079 lbs./in.

21.158 lbs./in.

21.242 lbs./in.

21.658 lbs./in.

21.825 lbs./in.

21.908 lbs./in.

22.075 lbs./in.

22.408 lbs./in.

22.574 lbs./in.

22.658 lbs./in.

22.741 lbs./in.

23.074 lbs./in.

23.157 lbs./in.

23.491 lbs./in.

23.657 lbs./in.

23.741 lbs./in.

23.907 lbs./in.

24.074 lbs./in.

24.157 lbs./in.

24.324 lbs./in.

24.407 lbs./in.

24.424 lbs./in.

25.157 lbs./in.

25.573 lbs./in.

25.823 lbs./in.

26.073 lbs./in.

26.423 lbs./in.

26.739 lbs./in.

26.823 lbs./in.

27.118 lbs./in.

27.239 lbs./in.

27.739 lbs./in.

28.155 lbs./in.

28.239 lbs./in.

28.322 lbs./in.

28.489 lbs./in.

28.572 lbs./in.

28.822 lbs./in.

29.155 lbs./in.

29.238 lbs./in.

29.299 lbs./in.

29.405 lbs./in.

29.988 lbs./in.

30.488 lbs./in.

31.154 lbs./in.

31.487 lbs./in.

31.821 lbs./in.

32.071 lbs./in.

32.154 lbs./in.

32.487 lbs./in.

32.904 lbs./in.

34.153 lbs./in.

34.236 lbs./in.

36.236 lbs./in.

36.402 lbs./in.

36.569 lbs./in.

36.659 lbs./in.

36.819 lbs./in.

36.902 lbs./in.

37.235 lbs./in.

37.652 lbs./in.

38.235 lbs./in.

38.485 lbs./in.

38.735 lbs./in.

39.068 lbs./in.

39.901 lbs./in.

41.317 lbs./in.

41.983 lbs./in.

42.233 lbs./in.

42.983 lbs./in.

43.316 lbs./in.

43.399 lbs./in.

43.566 lbs./in.

43.649 lbs./in.

43.899 lbs./in.

44.399 lbs./in.

45.232 lbs./in.

45.565 lbs./in.

45.648 lbs./in.

46.065 lbs./in.

47.148 lbs./in.

47.231 lbs./in.

47.733 lbs./in.

48.731 lbs./in.

48.897 lbs./in.

49.564 lbs./in.

49.897 lbs./in.

50.313 lbs./in.

51.479 lbs./in.

52.646 lbs./in.

52.729 lbs./in.

53.812 lbs./in.

54.312 lbs./in.

54.395 lbs./in.

54.562 lbs./in.

55.671 lbs./in.

59.158 lbs./in.

59.893 lbs./in.

60.309 lbs./in.

61.642 lbs./in.

62.892 lbs./in.

63.308 lbs./in.

63.725 lbs./in.

64.724 lbs./in.

66.557 lbs./in.

66.807 lbs./in.

70.389 lbs./in.

70.472 lbs./in.

72.721 lbs./in.

74.387 lbs./in.

77.386 lbs./in.

77.719 lbs./in.

81.967 lbs./in.

83.467 lbs./in.

85.549 lbs./in.

89.714 lbs./in.

96.212 lbs./in.

99.793 lbs./in.

103.209 lbs./in.

111.705 lbs./in.

119.785 lbs./in.

125.866 lbs./in.

130.81 lbs./in.

132.697 lbs./in.

149.69 lbs./in.

168.932 lbs./in.

199.587 lbs./in.

	Extended Length @ Maximum Load Extended Length @ Maximum Load

	Maximum Load Maximum Load

Less than 25 lbs.

25 to 49.99 lbs.

50 to 99.99 lbs.

100 to 199.99 lbs.

200 lbs. or greater

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Minimum Load Minimum Load

Less than 5 lbs.

10 to 24.99 lbs.

25 to 49.99 lbs.

50 lbs. or greater

	For Shaft Diameter For Shaft Diameter

	Compressed Length @ Maximum Load Compressed Length @ Maximum Load

	Thickness Thickness

	Working Load Working Load

Less than 1,000 lbs.

1,000 to 1,999 lbs.

2,000 to 2,999 lbs.

3,000 to 9,999 lbs.

10,000 lbs. or greater

	Flat Load Flat Load

Less than 1,000 lbs.

1,000 to 1,999 lbs.

2,000 to 9,999 lbs.

10,000 to 19,999 lbs.

20,000 lbs. or greater

	Finish Finish

	Deflection @ Working Load Deflection @ Working Load

Less than 0.01"

0.01" to 0.019"

0.02" to 0.029"

0.03" to 0.039"

0.04" or greater

Less than 0.25 mm

0.25 mm to 0.49 mm

0.5 mm to 0.99 mm

1 mm to 1.99 mm

2 mm or greater

	Height Height

	Thread Size Thread Size