System of Measurement System of Measurement |
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For Minimum O-Ring ID For Minimum O-Ring ID |
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For Maximum O-Ring ID For Maximum O-Ring ID |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About O-Rings
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O-Ring Sizing Gauges

When you are unsure of the size of your O-ring, this sliding gauge is for O-rings with 1/32” to 13” ID ranges. It identifies 312 dash numbers. The extended length is 25”.
For O-Ring ID Range | For O-Ring Wd. | Ht. | Each | |
1/32" to 13" | 0.07", 0.103", 0.139", 0.21", 0.275" | 13 1/2" | 0000000 | 000000 |