O-Ring, Buna-N, 90A, 4" ID, 4-1/8" OD, 1/16" Width, Black (Pack of 100)
Buna-N o-rings with 90A durometer for sealing cylindrical surfaces across a wide temperature range. Suitable for fluids from petroleum to aliphatic hydrocarbons. One customer notes heavy-duty performance and good value
Highlights
- Buna-N material for compatibility
- 90A hardness for durable seal
- AS568A-standard compatibility
Pros
- 90A durometer for robust sealing
- Wide temperature range
- Fluid compatibility with petroleum to aliphatic hydrocarbons
- Includes pack of 100 for bulk use
- Round cross-section provides reliable seal
Cons
- Mixed feedback on size accuracy
- Perceived stiffness by some users
Best For
Features
- Buna-N material suitable for fluids from petroleum to aliphatic hydrocarbons
- Durometer hardness rated at 90A
- Round cross-section creates a seal between cylindrical surfaces
- Operates from -40°C to 100°C (-40°F to 212°F)
- conforms to Aerospace Standard AS568A
