O-Ring Elastomeric Characteristics Selection Chart

Fastener O-Ring Elastomeric Characteristics Selection Chart

Letter Compound	Material	Relevant Specifications	Service Temp °F	------------RESISTANT TO------------				------------TYPICAL PROPERTIES------------
Letter Compound	Material	Relevant Specifications	Service Temp °F	Ozone	Chemicals	Oil	Solvents	Tensile PSI	Elongation %	Abrasion Resistance	Compression Set
S 2701	Silicone Rubber	ZZ-R-765 CLASS I & II GR. 70 RED	150° to 500°	Excellent	Good	Good	Fair	500-1800	100-800	Fair	Excellent
L 2615	Fluoro- Silicone Rubber	MIL-R-25988 AMS 3326	78° to 450°	Excellent	Good	Excellent	Good	600-1400	100-700	Fair	Excellent
V 5701	Viton® A	MIL-R-83248 CLASS I GR. 75	20° to 400°	Excellent	Excellent	Excellent	Excellent	2000-2200	300-400	Good	Excellent
N 4601	Buna N (NBR)	ASTM D2000-90 M2BG714	65° to 250°	Fair	Good	Excellent	Good	1500-3000	400-600	Good	Excellent
E 3601	Neoprene (EPR)	MIL-R-3065 AMS3209	65° to 300°	Good	Good	Good	Fair	1500-4000	100-700	Excellent	Good
F 7601	Ethylene Propylene (EPDM)	ASTM D2000-90 M3BA708	65° to 300°	Excellent	Excellent	Poor	Good	1400-1600	500-600	Excellent	Excellent
G —	Hydro- genated Nitrile	ASTM D2000-90 M2BG714 (Green)	40° to 275°	Excellent	Excellent	Excellent	Good	2000	170	Good	Excellent
	Other materials available. Please consult factory. Viton® is a registered trademark of DuPont Performance Elastomers.