O-Ring Size And Dimensions Chart

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O-RING SIZE AND DIMENSIONS
AS-568A
NORMAL SIZE
INCH STANDARD
METRIC STANDARD
UNIVERSAL
±
I.D
O.D
C.S
I.D
I.D
±
DASH NUMBERS
-004 to -050 Cross Section Diameters = .070 ± .003 inches − 1.78 ± 0.07 millimeters.
-001
1/32
x 3/32
x 1/32
.029
.004
0.74
0.10
-002
3/64
x 9/64
x 1/32
.42
.004
1.07
0.10
-003
1/16
x 3/16
x 1/16
.56
.004
1.42
0.10
-004
5/64
x 13/64
x 1/16
.07
.005
1.78
0.13
-005
3/32
x 7/32
x 1/16
.101
.005
2.57
0.13
-006
1/8
x 1/4
x 1/16
.114
.005
2.9
0.13
-007
5/32
x 9/32
x 1/16
.145
.005
3.68
0.13
-008
3/16
x 5/16
x 1/16
.176
.005
4.47
0.13
-009
7/32
x 11/32
x 1/16
.208
.005
5.28
0.13
-010
1/4
x 3/8
x 1/16
.239
.005
6.07
0.13
-011
5/16
x 7/16
x 1/16
.301
.005
7.65
0.13
-012
3/8
x 1/2
x 1/16
.364
.005
9.25
0.13
-013
7/16
x 9/16
x 1/16
.426
.005
10.82
0.13
-014
1/2
x 5/8
x 1/16
.489
.005
12.42
0.13
-015
9/16
x 11/16
x 1/16
.551
.007
14.00
0.18
-016
5/8
x 3/4
x 1/16
.614
.009
15.6
0.23
-017
11/16
x 13/16
x 1/16
.676
.009
17.17
0.23
-018
3/4
x 7/8
x 1/16
.739
.009
18.77
0.23
-019
13/16
x 15/16
x 1/16
.801
.009
20.35
0.23
-020
7/8
x 1
x 1/16
.864
.009
21.95
0.23
-021
5/8
x 1-1/16
x 1/16
.926
.009
23.52
0.23
-022
1
x 1-1/8
x 1/16
.989
.010
25.12
0.25
-023
1-1/16
x 1-3/16
x 1/16
1.051
.010
26.70
0.25
-024
1-1/8
x1-1/4
x 1/16
1.114
.010
28.30
0.25
-025
1-3/16
x 1-5/16
x 1/16
1.176
.011
29.87
0.28
-026
1-1/4
x 1-3/8
x 1/16
1.239
.011
31.47
0.28
-027
1-5/16
x 1-7/16
x 1/16
1.301
.011
33.05
0.28
-028
1-3/8
x 1-1/2
x 1/16
1.364
.013
34.65
0.33
-029
1-1/2
x 1-5/8
x 1/16
1.489
.013
37.82
0.33
-030
1-5/8
x 1-3/4
x 1/16
1.614
.013
-031
1-3/4
x 1-7/8
x 1/16
1.739
.015
44.17
0.38
-032
1-7/8
x 2
x 1/16
1.864
.015
47.35
0.38
-033
2
x 2-1/8
x 1/16
1.989
.018
50.52
0.46
-034
2-1/8
x 2-1/4
x 1/16
2.114
.018
53.70
0.46
-035
2-1/4
x 2-3/8
x 1/16
2.239
.018
56.87
0.46
-036
2-3/8
x 2-1/2
x 1/16
2.364
.018
60.05
0.46
-037
2-1/2
x 2-5/8
x 1/16
2.489
.018
63.22
0.46
-038
2-5/8
x 2-3/4
x 1/16
2.614
.020
66.40
0.51
-039
2-3/4
x 2-7/8
x 1/16
2.739
.020
69.57
0.51
-040
2/7/8
x 3
x 1/16
2.864
.020
72.75
0.51
-041
3
x 3-1/8
x 1/16
2.989
.024
75.92
0.61
-042
3-1/4
x 3-3/8
x 1/16
3.239
.024
82.27
0.61
-043
3/1/2
x 3-5/8
x 1/16
3.489
.024
88.62
0.61
-044
3/3/4
x 3-7/8
x 1/16
3.739
.027
94.97
0.69
-045
4
x 4-1/8
x 1/16
3.989
.027
101.32
0.69
-046
4-1/4
x 4-3/8
x 1/16
4.239
.030
107.67
0.76
-047
4-1/2
x 4-5/8
x 1/16
4.489
.030
114.02
0.76
-048
4-3/4
x 4-7/8
x 1/16
4.739
.030
120.37
0.76
-049
5
x 5-1/8
x 1/16
4.989
.037
126.72
0.94
-050
5-1/4
x 5-3/8
x 1/16
5.239
.037
133.07
0.94

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