Oil-Resistant Hard Buna-N O-Ring Cord Stock

	System of Measurement System of Measurement

Inch

Metric

	Width Width

	Length Length

	Fractional Width Fractional Width

1/8

3/16

1/4

	Cross Section Shape Cross Section Shape

	Round

	Hardness Hardness

Durometer 90A

	Hardness Rating Hardness Rating

	Hard

	Color Color

	Black

	Material Material

Rubber

	For Use With For Use With

	Maximum Temperature Maximum Temperature

Less than 250° F

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

DFARS Specialty Metals
COTS-Exempt

	Minimum Temperature Minimum Temperature

-49° to 0° F

	Specifications Met Specifications Met

ASTM

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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About O-Rings

Harder than standard Buna-N cord stock for better wear resistance. It resists hydraulic oils, motor oil, petroleum fluids, and ethylene glycol. Use it to make round-profile O-rings, which are suitable for a wide range of static and dynamic sealing applications.

For technical drawings and 3-D models, click on a part number.

Inch

Wd.
Fractional	Actual	Hardness	Specifications Met	Temperature Range, °F	Color	Lengths, ft.		Per Ft.
1/8	0.139"	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	000000	00000
3/16	0.21"	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	000000	0000
1/4	0.275"	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	000000	0000

Metric

Wd., mm	Hardness	Specifications Met	Temperature Range, °F	Color	Lengths, ft.		Per Ft.
2	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	00000
2.5	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	000
3	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	000
3.5	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	000
4	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	000
4.5	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	000
5	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	0000
5.5	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	0000
6	Durometer 90A (Hard)	ASTM D2000	-25° to 212°	Black	3, 10, 20, 50, 100	0000000	0000