What O-ring materials do you offer?

Kesaria offers O-rings in a diverse range of elastomers including Natural Rubber (NR), SBR, Nitrile Rubber (NBR), Neoprene (CR), EPDM, HNBR, ACM, CSM, Silicone, and FKM (Viton). Each material is suited to specific chemical, temperature, and pressure environments.

What is the temperature range for silicone O-rings?

Silicone O-rings from Kesaria Rubber Industries operate across a temperature range of -60°C to +230°C, making them suitable for high-temperature sealing in medical equipment, food-grade applications, and steam environments.

Do you make custom size O-rings?

Yes. Alongside standard O-ring sizes, Kesaria designs products to exact dimensions. Custom O-rings require precision in width, thickness, inner diameter, and outer diameter, with engineering support available to match specifications. Sizes range from 3 mm to 500 mm.

What is your minimum order quantity?

Kesaria Rubber Industries serves both small and large volume requirements, with a production capacity of 550,000 units per day and 5,000+ active SKUs. Contact info@kesaria.com or +91 97181 19993 for specific MOQ details.

What quality standards do Kesaria O-rings comply with?

Kesaria follows ISO-aligned quality systems with rigorous batch quality checks and a zero rejection track record, serving clients including Caparo Maruti, Kohler, and Astral Poly Technik, and holding Class A Supplier (Category 1A) status from LAPP India.

In which industries are Kesaria O-rings used?

Kesaria O-rings are used across Plumbing & Bathware, Automobile, Home Appliance, Electrical, Oil & Gas, Medical Equipment, Pharmaceuticals, Food & Beverages, Petrochemicals, and General Engineering, supplying 1,400+ customers across 27+ countries.

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Washers

Rubber Washers are disks of rubber placed beneath a nut, an axle bearing or a joint to relieve friction, prevent leakage, isolate, prevent loosening or distribute pressure. Kesaria Rubber Industries manufactures rubber washers that create a tight seal between two surfaces, preventing the leakage of liquids, gases, or contaminants, while also absorbing vibration, reducing noise, and bolstering the overall assembly.

Kesaria specializes in customized rubber washers with specific diameters, thicknesses, hardness levels, and material grades, ensuring compatibility with client applications across industries including automotive, plumbing, and machinery.

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Category: Rubber

Material Selection Guide

MATERIAL / PROPERTY	NR	SBR	NBR	CR	EPDM	HNBR	ACM	CSM	SILICONE	FKM (VITON)
HARDNESS RANGE (SHORE A)	40–90	35–90	40–90	40–80	40–90	40–90	40–80	40–80	30–80	50–90
HIGH TEMP. °C	100	120	130	130	150	150	180	150	230	225
LOW TEMP. °C	-50	-55	-45	-40	-50	-45	-25	-40	-60	-15
STEAM	F	F	F	P	G	G	P	E	E	E
SUNLIGHT	P	F	F	G	E	G	E	E	E	E
WEATHERING / OZONE	P	P	F	G	E	G	E	E	E	E
COMPRESSION SET	F	F	F	F	F	G	G	P	G	E
ABRASION RESISTANCE	G	F	F	E	F	G	G	E	P	G
FLAME RESISTANCE	P	P	P	E	F	P	P	E	G	E
GAS PERMEATION	F	F	G	G	F	G	G	F	P	E
CHEMICALS / SOLVENTS	P	F	G	F	P	F	G	G	F	E
PETROLEUM OILS	P	F	G	G	P	E	F	F	P	E
FUELS / GASOLINE	P	P	G	P	P	G	P	P	P	G
BRAKE FLUIDS	P	P	P	P	G	F	P	P	P	G
TRANSMISSION FLUIDS	F	P	G	F	F	F	E	P	P	G
STEERING FLUIDS	P	P	P	F	P	P	E	P	P	G
REFRIGERANT / FREON	F	G	F	G	P	G	P	G	P	G
DYNAMIC APPLICATIONS	F	F	G	E	G	E	G	G	P	E
FDA COMPLIANT	A	A	A	A	A	A	NA	NA	A	NA

E= EXCELLENT; G= GOOD; F= Fair; P= Poor; A=Available, NA= Not Available This guide is intended for general reference Only. The materials listed are the most commonly used. There are numerous compound variations designed for specific applications for which please forward details to our engineers for recommendation.

Washer Types & Sizes

Flat Washers
Beveled Washers
C-Washers
D-Shaped Washers
Sealing Washers
Spherical Washers
Square Washers
Shoulder Washers

Material of Construction

NBR(NItrile)
HNBR
EPDM
Silicone
FKM
CR (Neoprene)
SBR (Styrene)
Natural Rubber
PTFE

Hardness

The hardness rating on a Shore A scale for Kesaria’s washers ranges from 30 to 90 Durometer. Exact specifications should be confirmed with Kesaria’s engineers, as the chemical and physical properties of washers can differ based on manufacturing technique – the guide above is intended for general reference only, and numerous compound variations exist for specific applications.

How Rubber Washers Helps You

Rubber washers aren’t just fillers they are silent protectors of performance and reliability. Leaks, inefficiencies, and premature wear often trace back to poor-quality or mismatched washers. Kesaria’s rubber washers create a tight seal between mating surfaces, absorb vibration, reduce noise, and are available in a wide material selection so each washer is matched to its working environment rather than treated as a generic part.

Leak-proof sealing: creates a tight seal between two surfaces, preventing the leakage of liquids, gases, or contaminants.

Vibration absorption: cushions moving or rotating parts, reducing wear on the surrounding assembly.

Noise reduction: dampens vibration-driven noise in mechanical assemblies.

Wide material selection: available in NR, NBR, EPDM, Silicone, Viton, and more, chosen to suit chemical resistance, temperature tolerance, and durability needs.

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FAQ

You have questions.
We have answers.

What materials are Kesaria's rubber washers available in?

Kesaria manufactures rubber washers from high-grade elastomers including NBR(NItrile), HNBR, EPDM, Silicone, FKM, CR (Neoprene), SBR (Styrene), Natural Rubber and PTFE, selected based on application requirements such as chemical resistance, temperature tolerance, and durability.

Can rubber washers withstand extreme temperatures?

Yes. Temperature tolerance depends on the material selected - for example, Nitrile (NBR) is suited to oil-resistant applications, while EPDM resists water, steam, and certain chemicals. Kesaria helps customers choose the right washer material for their specific environment.

Can Kesaria customize rubber washers for my application?

Yes. Kesaria specializes in customized rubber washers with specific diameters, thicknesses, hardness levels, and material grades, ensuring compatibility with client applications across industries such as automotive, plumbing, and machinery.

What sizes are Kesaria's rubber washers available in?

Kesaria's rubber washers specify are Inside Diameter, Outside Diameter, Thickness (working height), and rated/working load, with hardness ranging from 30 to 90 Shore A.

How do I choose the right rubber washer material for my application?

Because the chemical and physical properties of washers can differ based on manufacturing technique, Kesaria recommends sharing your application details with its engineers, who will confirm the exact material, hardness, and size specification suited to your operating conditions.