460 Viton O-Ring 75A Durometer 15-1/2in ID 16in OD - Pack of 25

In this review the 460 Viton O-Ring pack is evaluated for technicians, maintenance teams, and hobbyists who need durable chemical- and heat-resistant seals. The bottom line is that these o-rings deliver consistent fit and leak resistance for a wide range of sealing tasks, with the single biggest reason to buy being their material performance: made of Viton fluorocarbon elastomer they tolerate fuels, aromatic and aliphatic hydrocarbons, and high temperatures that would degrade many other elastomers. The pack size also makes them a practical choice for repeat repairs and routine maintenance.

Key Features

• Material: Viton fluorocarbon elastomer offers excellent resistance to heat, fuels, and many chemicals, extending seal life in demanding environments.
• Temperature range: Usable from -15 degrees F to 400 degrees F, so the rings work across cold-start and high-heat operating conditions.
• Durometer 75A: A balanced hardness that resists penetration while remaining flexible enough to form a reliable seal under compression.
• Dimensional fit: With a 15-1/2in inside diameter and 16in outside diameter (1/4in width) these rings are sized for larger cylindrical overlaps and common industrial assemblies.
• Standards: Conformance to Aerospace Standard AS568A means the cross-sectional shape and sizing follow established o-ring conventions for interchangeability.
• Pack quantity: Supplied as a pack of 25, offering spare parts for multiple service cycles or for stocking at the bench.

Who It's For

The 460 Viton O-Ring is best for maintenance professionals, hydraulics and plumbing technicians, and users repairing fuel-related components or high-temperature seals who need a reliable, chemically resistant elastomer. It is a practical choice when replacements are required for assemblies exposed to fuels, silicone oils, chlorinated or aromatic hydrocarbons, or outdoor weathering.

Those who should look elsewhere include projects exposed to strong alkalis, ammonia gas, or glycol-based brake fluids, and applications involving super-heated steam, since Viton can be vulnerable to those specific chemistries. For soft-seal needs in low-load or food-contact situations, another elastomer may be preferable.

Pros & Cons

Pros

• Excellent chemical and fuel resistance makes these rings dependable in many industrial fluid systems.
• Wide temperature tolerance allows use in both cold and high-heat environments without rapid degradation.
• Customers report good fit, leak resistance, and durability in common replacements such as fuel bottles and barrel seals.
• Pack of 25 provides value for maintenance shops and reduces downtime with spare parts on hand.

Cons

• Not suitable for exposure to low molecular organic acids, ammonia, alkalis, some amines, or glycol-based brake fluids where failure risk increases.
• 75A hardness may be firmer than desired for ultra-low-pressure sealing or very delicate interfaces.

Specifications

Material	Viton (fluorocarbon elastomer)
Color	Black
Inside diameter	15-1/2in
Outside diameter	16in
Cross-section width	1/4in
Durometer	75A
Temperature range	-15 degrees F to 400 degrees F

Our Verdict

The 460 Viton O-Ring pack is a strong choice for anyone needing robust, heat- and fuel-resistant seals in industrial or field service settings; it offers good value in a 25-count package and performs well where Viton compatibility is required. Buyers should confirm chemical compatibility for alkalis and certain brake fluids before use, but for most fuel and hydrocarbon-exposed seals this is a durable, cost-effective replacement option.

Frequently Asked Questions

Are these o-rings suitable for fuel systems?
Yes; Viton is compatible with many fuels and aromatic or aliphatic hydrocarbons, making these rings suitable for many fuel system seals.

What size are these o-rings?
The rings measure 15-1/2in inside diameter, 16in outside diameter, with a 1/4in cross-section width.

Can they be used at high temperatures?
Yes; the usable temperature range is from -15 degrees F to 400 degrees F, so they work in most high-heat applications within that range.