With the dimensions of the ring, is the 2nd dimension the circumference or diameter of the rubber o-ring ?

The second figure is the thickness of the ring. Just remember, these figures are very approximate, for example, 3.1 is about 2.9/3.0 according to my Vernier calipers

Are the dimensions listed inside or outside diameters?

Dear customer, the above dimensions are measured according to the outer diameter

What are the inside and outside diameters of the largest rings?

The outer diameter of the gasket is 30mm as shown in the picture, and the inner diameter is 23.8mm 30*3.1 represent the outer diameter and wire diameter of the gasket respectively (the wire diameter is the thickness of the gasket)

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Newoutset 200pcs O-ring Seals, 15 Sizes, Rubber Gasket Kit,Rubber Washers | Electrical insulation seal kit for pipe plumber, insulated gasket set combination O-rings for plumbing and electrical repairs

Product ID: 345953092

Details

Brand
Newoutset
Colour
Black
Item diameter
1.9
Material
Nitrile Rubber
Nominal inside diameter
1.9

📦Compact organized storage

🔥Heat resistant up to 120°C

🛠️200pcs versatile kit

S$9

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🔧 Seal the deal with confidence—your ultimate fix-it companion!

SPACE SMART STORAGE - Comes in a sleek, labeled plastic case that keeps your toolkit tidy and ready for action.
EFFORTLESS INSTALLATION - Soft, flexible design snaps on easily for quick, reliable sealing on gas, water, oil, and air lines.
ALL IN ONE REPAIR ARSENAL - 200 premium nitrile rubber O-rings in 15 essential sizes—never scramble for the right seal again.
BUILT TO LAST UNDER PRESSURE - High tensile strength and heat resistance up to 120°C ensure durability in demanding environments.
UNIVERSAL APPLICATION POWERHOUSE - Perfect for plumbing, automotive, workshops, and general repairs—protects against leaks and metal wear.

This 200-piece O-ring seal kit features durable nitrile rubber rings in 15 commonly used sizes, designed for high resilience and heat resistance up to 120°C. Ideal for plumbing, automotive, and general repairs, the flexible rings provide airtight sealing for liquids and gases. Packaged in a compact, labeled case, this set offers organized, long-term reliability for professionals and DIY enthusiasts alike.

Specifications

ASIN	B099DYKDLL
Best Sellers Rank	825 in DIY & Tools ( See Top 100 in DIY & Tools ) 1 in Washers 2 in Tap O-Rings
Brand	Newoutset
Colour	Black
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (3,556)
Item Diameter	1.9 Millimetres
Manufacturer	Xin Jihui
Manufacturer Part Number	XJH-M
Material	Nitrile Rubber
Nominal Inside Diameter	1.9 Millimetres
Nominal Outside Diameter	1.9 Millimetres
Number of Items	1
Number of Pieces	200
Set Name	O-ring seals combination set
Temperature Range	1.2E+2 Degrees Celsius
UPC	612789268115
Unit Count	200 count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

S$9