89 catalogued sizes, dimensioned to AS 568. Pick any row and the technical drawing redraws to it.
AS568 O-Rings (Inch Series) to AS 568 are catalogued in id 0.03-5.24 mm, with id 0.74-133.07 mm, wide 1.42-3.66 mm. 89 sizes are held in the table below, and the technical drawing redraws to whichever row you select.
Standard
AS 568
ID
0.03-5.24 mm
ID
0.74-133.07 mm
Wide
1.42-3.66 mm
Catalogued sizes
89
Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.
Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.
Sends the selected values to the quote form below.
Request a Quotation for AS568 O-Rings (Inch Series)
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (AS 568)
Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.
Dash number
Inner diameter d1 (in)
Inner diameter d1 (mm)
Cross section CS (in)
Cross section CS (mm)
Groove width (mm)
Reference standard
AS568-001
0.029
0.74
0.040
1.02
1.42
AS 568
AS568-002
0.042
1.07
0.040
1.02
1.42
AS 568
AS568-003
0.056
1.42
0.040
1.02
1.42
AS 568
AS568-004
0.070
1.78
0.040
1.02
1.42
AS 568
AS568-005
0.101
2.57
0.040
1.02
1.42
AS 568
AS568-006
0.114
2.90
0.070
1.78
2.49
AS 568
AS568-007
0.145
3.68
0.070
1.78
2.49
AS 568
AS568-008
0.176
4.47
0.070
1.78
2.49
AS 568
AS568-009
0.208
5.28
0.070
1.78
2.49
AS 568
AS568-010
0.239
6.07
0.070
1.78
2.49
AS 568
AS568-011
0.301
7.65
0.070
1.78
2.49
AS 568
AS568-012
0.364
9.25
0.070
1.78
2.49
AS 568
AS568-013
0.426
10.82
0.070
1.78
2.49
AS 568
AS568-014
0.489
12.42
0.070
1.78
2.49
AS 568
AS568-015
0.551
14.00
0.070
1.78
2.49
AS 568
AS568-016
0.614
15.60
0.070
1.78
2.49
AS 568
AS568-017
0.676
17.17
0.070
1.78
2.49
AS 568
AS568-018
0.739
18.77
0.070
1.78
2.49
AS 568
AS568-019
0.801
20.35
0.070
1.78
2.49
AS 568
AS568-020
0.864
21.95
0.070
1.78
2.49
AS 568
AS568-021
0.926
23.52
0.070
1.78
2.49
AS 568
AS568-022
0.989
25.12
0.070
1.78
2.49
AS 568
AS568-023
1.051
26.70
0.070
1.78
2.49
AS 568
AS568-024
1.114
28.30
0.070
1.78
2.49
AS 568
AS568-025
1.176
29.87
0.070
1.78
2.49
AS 568
AS568-026
1.239
31.47
0.070
1.78
2.49
AS 568
AS568-027
1.301
33.05
0.070
1.78
2.49
AS 568
AS568-028
1.364
34.65
0.070
1.78
2.49
AS 568
AS568-029
1.489
37.82
0.070
1.78
2.49
AS 568
AS568-030
1.614
41.00
0.070
1.78
2.49
AS 568
AS568-031
1.739
44.17
0.070
1.78
2.49
AS 568
AS568-032
1.864
47.35
0.070
1.78
2.49
AS 568
AS568-033
1.989
50.52
0.070
1.78
2.49
AS 568
AS568-034
2.114
53.70
0.070
1.78
2.49
AS 568
AS568-035
2.239
56.87
0.070
1.78
2.49
AS 568
AS568-036
2.364
60.05
0.070
1.78
2.49
AS 568
AS568-037
2.489
63.22
0.070
1.78
2.49
AS 568
AS568-038
2.614
66.40
0.070
1.78
2.49
AS 568
AS568-039
2.739
69.57
0.070
1.78
2.49
AS 568
AS568-040
2.864
72.75
0.070
1.78
2.49
AS 568
AS568-041
2.989
75.92
0.070
1.78
2.49
AS 568
AS568-042
3.239
82.27
0.070
1.78
2.49
AS 568
AS568-043
3.489
88.62
0.070
1.78
2.49
AS 568
AS568-044
3.739
94.97
0.070
1.78
2.49
AS 568
AS568-045
3.989
101.32
0.070
1.78
2.49
AS 568
AS568-046
4.239
107.67
0.070
1.78
2.49
AS 568
AS568-047
4.489
114.02
0.070
1.78
2.49
AS 568
AS568-048
4.739
120.37
0.070
1.78
2.49
AS 568
AS568-049
4.989
126.72
0.070
1.78
2.49
AS 568
AS568-050
5.239
133.07
0.070
1.78
2.49
AS 568
AS568-102
0.049
1.24
0.103
2.62
3.66
AS 568
AS568-103
0.081
2.06
0.103
2.62
3.66
AS 568
AS568-104
0.112
2.84
0.103
2.62
3.66
AS 568
AS568-105
0.143
3.63
0.103
2.62
3.66
AS 568
AS568-106
0.174
4.42
0.103
2.62
3.66
AS 568
AS568-107
0.206
5.23
0.103
2.62
3.66
AS 568
AS568-108
0.237
6.02
0.103
2.62
3.66
AS 568
AS568-109
0.299
7.59
0.103
2.62
3.66
AS 568
AS568-110
0.362
9.19
0.103
2.62
3.66
AS 568
AS568-111
0.424
10.77
0.103
2.62
3.66
AS 568
AS568-112
0.487
12.37
0.103
2.62
3.66
AS 568
AS568-113
0.549
13.94
0.103
2.62
3.66
AS 568
AS568-114
0.612
15.54
0.103
2.62
3.66
AS 568
AS568-115
0.674
17.12
0.103
2.62
3.66
AS 568
AS568-116
0.737
18.72
0.103
2.62
3.66
AS 568
AS568-117
0.799
20.29
0.103
2.62
3.66
AS 568
AS568-118
0.862
21.89
0.103
2.62
3.66
AS 568
AS568-119
0.924
23.47
0.103
2.62
3.66
AS 568
AS568-120
0.987
25.07
0.103
2.62
3.66
AS 568
AS568-121
1.049
26.64
0.103
2.62
3.66
AS 568
AS568-122
1.112
28.24
0.103
2.62
3.66
AS 568
AS568-123
1.174
29.82
0.103
2.62
3.66
AS 568
AS568-124
1.237
31.42
0.103
2.62
3.66
AS 568
AS568-125
1.299
32.99
0.103
2.62
3.66
AS 568
AS568-126
1.362
34.59
0.103
2.62
3.66
AS 568
AS568-127
1.424
36.17
0.103
2.62
3.66
AS 568
AS568-128
1.487
37.77
0.103
2.62
3.66
AS 568
AS568-129
1.549
39.34
0.103
2.62
3.66
AS 568
AS568-130
1.612
40.94
0.103
2.62
3.66
AS 568
AS568-131
1.674
42.52
0.103
2.62
3.66
AS 568
AS568-132
1.737
44.12
0.103
2.62
3.66
AS 568
AS568-133
1.799
45.69
0.103
2.62
3.66
AS 568
AS568-134
1.862
47.29
0.103
2.62
3.66
AS 568
AS568-135
1.924
48.87
0.103
2.62
3.66
AS 568
AS568-136
1.987
50.47
0.103
2.62
3.66
AS 568
AS568-137
2.049
52.04
0.103
2.62
3.66
AS 568
AS568-138
2.112
53.64
0.103
2.62
3.66
AS 568
AS568-139
2.174
55.22
0.103
2.62
3.66
AS 568
AS568-140
2.237
56.82
0.103
2.62
3.66
AS 568
AS568 O-Rings (Inch Series) are seals manufactured to AS 568. This page lists the full dimensional range with the key specifications engineers need to select and specify them.
What Are AS568 O-Rings (Inch Series)?
AS568 O-Rings (Inch Series) are seals defined by AS 568. They are selected by size designation and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Materials & Finishes
O-rings and seals are specified by elastomer, not by steel grade: NBR (nitrile) for mineral oil and hydraulic service, FKM for higher temperature and aggressive chemistry, EPDM for water, steam and weathering, silicone for a wide temperature range in static duty, and PTFE where chemical resistance outweighs elastic recovery. Specify the compound, the hardness in Shore A and the temperature range alongside the dimensions.
AS568 O-Rings (Inch Series) are supplied to order. Pricing starts from approximately US$0.040 per piece for standard sizes in standard nitrile (NBR) 70 Shore A; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.
This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.
01
Cold heading
Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.
Head dimensions and under-head radius checked at set-up and per shift.
02
Thread rolling
Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.
Go / no-go ring gauges to ISO 965 tolerance class 6g.
03
Heat treatment
Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.
Core hardness and tensile tested per lot to ISO 898-1.
04
Surface treatment
Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.
Coating thickness and neutral salt spray hours to ISO 9227.
Third-party video, selected automatically for this topic. It is not produced by Engineering Hardware and is not a specification source — use the tables on this page for dimensional data.
Frequently Asked Questions
What standard are AS568 O-Rings (Inch Series) manufactured to?
AS568 O-Rings (Inch Series) are manufactured to AS 568. The dimensional values on this page follow that standard.
What sizes are available for AS568 O-Rings (Inch Series)?
The table on this page lists 89 sizes for AS568 O-Rings (Inch Series), ranging from AS568-001 to AS568-140. Sizes outside the table can be quoted on request.
In which materials are AS568 O-Rings (Inch Series) supplied?
AS568 O-Rings (Inch Series) are supplied in NBR (nitrile), FKM, EPDM, silicone and PTFE, selected by fluid and temperature, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for AS568 O-Rings (Inch Series).
How do I request a quotation?
Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.
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