Best O-Rings (2026 Guide)
The Verdict
- Best Overall: KEZE Viton O-Ring Assortment Kit, 386 pcs, 30 sizes — Best for repair kits: extensive 30-size Viton assortment useful for workshops and field service needs
- Best Value: O-Ring Viton 75A 5/16" ID 7/16" OD 1/16" Width Black (Pack of 500) — Best for bulk small seals: large pack of 5/16" ID Viton rings suited to repeated maintenance tasks
This guide compiles top-rated Viton O-rings and kits for industrial, plumbing, hydraulic and chemical-sealing applications, selected by aggregated user ratings and review volume. Picks prioritize material (Viton/FKM), common sizes and pack variety so you can match seals to fittings and repair needs
Top Picks
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1
Best Overall KEZE Viton O-Ring Assortment Kit, 386 pcs, 30 sizes
Best for repair kits: extensive 30-size Viton assortment useful for workshops and field service needs
A 386-piece metric Viton O-ring set with 30 sizes for industrial plumbing, hydraulic and cylinder repairs. Customers note high quality and versatile size range, with some missing parts reported
- 386-piece O-ring kit
- Viton material for durability
- 30 size range
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2
Best Value O-Ring Viton 75A 5/16" ID 7/16" OD 1/16" Width Black (Pack of 500)
Best for bulk small seals: large pack of 5/16" ID Viton rings suited to repeated maintenance tasks
Viton O-ring with 75A hardness for sealing cylindrical surfaces. Suitable for a wide temperature range and various chemicals; designed for durable leak resistance. Customers note precise fit and reliable performance in heat
- Viton with chemical and heat resistance
- 75A durometer for reliable seal contact
- large pack quantity
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3
O-Ring, Viton 75A, 1-3/16 in ID 1-7/16 in OD 1/8 in wide, black (pack of 50)
Best for mid-size seals: 1-3/16" ID Viton rings in a 50-pack for recurring replacements
Viton O-rings with 75A hardness for sealing between cylindrical surfaces. Wide temperature range and chemical compatibility; 50-pack. Customers note precise fit and reliable heat resistance
- Viton fluorocarbon elastomer
- 75A hardness
- 1-3/16" ID and 1-7/16" OD
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4
O-Ring, Viton, 75A, 3" ID x 3.5" OD, 1/4" 5-pack
Best for large 3" fittings: 3" ID Viton O-rings sold in a small multi-pack for specific assemblies
Viton O-rings with 75A hardness for chemical and fuel compatibility. Round cross-section provides a seal between cylindrical surfaces across a wide temperature range. Customers note precise fit and reliable performance in heat and replacement applications
- Viton elastomer
- 75A durometer
- AS568A conformity
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5
251 Viton O-Ring 75A 5-1/8" ID 5-3/8" OD 1/8" W (pack of 10)
Best for extra-large seals: 5-1/8" ID Viton rings in small packs for oversized housings
Viton O-ring with 75A durometer for sealing between cylindrical surfaces. Wide temperature range and chemical compatibility. Customers note precise fit and reliable leak resistance
- Viton chemical and fuel compatibility
- 75A durometer for durability
- AS568A standard compliance
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6
Viton O-Ring, 75A, 8.5" ID / 9" OD, 1/4" W, pack of 2
Best for wide sealing faces: 8.5" ID Viton rings with a 1/4" cross-section for large-diameter seals
Two Viton O-rings with 75A hardness, sized 8-1/2" ID and 9" OD, 1/4" width. Suitable for chemical and fuel use, with wide temperature tolerance. Customers note good fit and durable performance
- Viton material
- 75A durometer
- 8-1/2" ID and 9" OD
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7
Viton O-ring 75A, 15/16" ID 1-1/8" OD 3/32" wide, pack of 100
Best for high-volume small parts: 15/16" ID Viton rings in a 100-pack for consumable replacements
Viton O-ring for chemical and fuel contact. Round cross-section seals between cylindrical surfaces, with a wide temperature range. Customers note precise fit and good heat resistance
- Viton material
- 75A hardness
- AS568A standard compliance
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8
Viton O-Ring 75A 5-1/4" ID 5-1/2" OD 1/8" Width (Pack of 10)
Best for specific large diameters: 5-1/4" ID Viton rings sold in small quantity packs for tailored repairs
Viton O-ring with 75A durometer for chemical and fuel compatibility. Round cross-section for sealing between cylindrical surfaces and broad temperature range. Customer note: fits well and remains leak-resistant
- Viton material for chemical resistance
- 75A durometer for durable seals
- AS568A standards compatibility
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9
Viton O-Ring, 75A, 1-3/8" ID, 1-1/2" OD, 1/16" thick, Pack of 100
Best for thin-section applications: 1-3/8" ID Viton rings with 1/16" thickness for shallow grooves
Viton O-ring with 75A hardness for chemical and fuel compatibility. Round cross-section provides a seal between cylindrical surfaces. customers note solid fit and heat resistance in various applications
- chemical and fuel compatibility
- wide temperature range
- pack of 100
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10
O-Ring, Viton, 75A, 2-7/8" ID, 3-3/8" OD, 1/4" width (Pack of 5)
Best for medium-large seals: 2-7/8" ID Viton rings with 1/4" width for robust flange and housing seals
Viton O-rings for chemical and fuel compatibility, 75A hardness, round cross-section for effective sealing. Suitable across wide temperature range. Customer note: excellent fit and durability in heat
- Viton 75A hardness
- wide temperature tolerance
- AS568A standards reference