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NEW ELASTOMER COMPOUND FOR -65°F TO 275°F SEAL APPLICATIONS
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English
Abstract
This paper describes the development of a new improved hydraulic O-ring seal material to replace the currently used -65°F to 275°F MIL-P-25732 specification hydraulic seal material. Test data at 275°F shows the MIL-P-25732 material has about a 500 hours operational life. This new material (AFE XN 1925-33) has at least double the life of the specification material. Also discussed is the performance of the retainer ring (backup ring) and recommendations for its use. The development of the O-ring concept, early performance history and the evolution of the O-ring to the most recent specification material (MIL-H-83461) are related.
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Citation
HEADRICK, R., "NEW ELASTOMER COMPOUND FOR -65°F TO 275°F SEAL APPLICATIONS," SAE Technical Paper 760857, 1976, https://doi.org/10.4271/760857.Also In
References
- Allen Robert E. “O-Rings Make History,” Otterbein Publishing Co. 1969
- Blaske G. R. “Investigation of Hydraulic Equipment Removed from B-24-D ‘Lady Be Good’ Aircraft,” Vicker, Inc. Engineering Report 8-0102-031-340-C 7 July 1960
- Nenninger Paul “Development of a Long Life O-Ring Compound for Use in Aircraft Hydraulic Systems Using MIL-H-5606 Fluids at Pressures up to 3000 psi and Temperatures Ranging from -65°F to +275°F,” April 1966
- Miller K. R. et al. “Long Life Elastomeric Aircraft Seals,”
- Hiltner L. G. Miller K. R. “Long Life Elastomeric Seals,” 15 March 1973