o-ring
Doughnut-shaped gasket
An o-ring is a circular rubber gasket with a round cross-section, shaped like the letter O.
These rings fit into grooves to create watertight or airtight seals in pipes, valves, and machinery: Check the o-rings before reassembling the pump.
The 1986 Challenger disaster was caused by a failed o-ring in cold weather.
Also spelled O-ring.
Doughnut-form geometry
- cross-sectionView through interior
- circularForming a closed curve
- annularRing-shaped, with hole
- roundCurved like circle
diameter · bore · inner · outer · thickness · cord · donut · continuous
Mechanical leak preventer
- sealAuthentication stamp or mark
- grommetHole-protecting ring insert
- washerSpacer ring for fasteners
- packingPutting items in containers
watertight · airtight · hermetic · leakproof · impermeable · barrier · compression · seated
Stretchable polymer substance
- neopreneSynthetic rubber polymer
- siliconeFlexible synthetic polymer
- nitrileCyano-functional organic compound
- fluorocarbonCarbon-halogen compound, very stable
polyurethane · rubber · synthetic · flexibility · resilience · tensile · elasticity · compression
toroidal
Doughnut-form geometry
- cross-sectionView through interior
- circularForming a closed curve
- annularRing-shaped, with hole
round · diameter · bore · inner · outer · thickness · cord · donut · continuous · seamless
gasket
Mechanical leak preventer
packing · watertight · airtight · hermetic · leakproof · impermeable · barrier · compression · seated · groove
elastomer
Stretchable polymer substance
- neopreneSynthetic rubber polymer
- siliconeFlexible synthetic polymer
- nitrileCyano-functional organic compound
fluorocarbon · polyurethane · rubber · synthetic · flexibility · resilience · tensile · elasticity · compression · extrusion
hydraulic
Relating to pressurized liquids
- pneumaticUsing pressurized gas
- plumbingWater and waste infrastructure
- pistonReciprocating cylinder component
valve · cylinder · fitting · flange · coupling · shaft · connector · fluid · pressure · vacuum
extrusion
Pushing through a die
hardening · cracking · leakage · blowout · Challenger · degradation · wear · fatigue
- rubbernatural rubber, rubber band, rubber trees, rubber boot, rubber glove
- sealsharbor seal, gasket, airtight seal, rubber seal, wax seal
- apparatus partsbearing, bracket, clamp, connector, dial
- diving gearfins, mask, diving suit, wetsuit, diving knife
- machine partsgear, gears, cog, cogs, bolt
- plumbing partsfaucet, valve, washer, drain, gasket