![361 Buna-N O-Ring, 70A Durometer, Square, Black, 6" ID, 6-3/8" OD, 3/16" Width (Pack of 10): O Ring Seals: Amazon.com: Industrial & Scientific 361 Buna-N O-Ring, 70A Durometer, Square, Black, 6" ID, 6-3/8" OD, 3/16" Width (Pack of 10): O Ring Seals: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51wag0k5uaL.jpg)
361 Buna-N O-Ring, 70A Durometer, Square, Black, 6" ID, 6-3/8" OD, 3/16" Width (Pack of 10): O Ring Seals: Amazon.com: Industrial & Scientific
![1mm CS X 2mm ID (NBR) Buna-N 70 Duro Square Ring [SB1000-1X2] : The O-Ring Store LLC, We make getting O-Rings easy! 1mm CS X 2mm ID (NBR) Buna-N 70 Duro Square Ring [SB1000-1X2] : The O-Ring Store LLC, We make getting O-Rings easy!](https://www.theoringstore.com/store/images/square-orings.png)
1mm CS X 2mm ID (NBR) Buna-N 70 Duro Square Ring [SB1000-1X2] : The O-Ring Store LLC, We make getting O-Rings easy!
![Static seals - dual seal, fluid connector seal, square ring, flange seal, bonded seal, facial seal - FRANCE JOINT Static seals - dual seal, fluid connector seal, square ring, flange seal, bonded seal, facial seal - FRANCE JOINT](https://www.francejoint.com/media/joints_statiques_static_seals_880_300__072471000_1549_11052015.jpg)
Static seals - dual seal, fluid connector seal, square ring, flange seal, bonded seal, facial seal - FRANCE JOINT
![AS568-236 SN70 (NBR) Buna-N 70 Duro Square O-Ring [SN70236] : The O-Ring Store LLC, We make getting O-Rings easy! AS568-236 SN70 (NBR) Buna-N 70 Duro Square O-Ring [SN70236] : The O-Ring Store LLC, We make getting O-Rings easy!](https://www.theoringstore.com/store/images/squarering.png)