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)

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200 Pcs O-Rings Gasket

Product ID: 345953092

Details

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

📦Compact, labeled storage case

🔥Heat resistant up to 120°C

🛠️200 pcs versatile kit

€ 10.96

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal the deal with confidence—never get caught without the perfect O-ring again!

SPACE SMART STORAGE - Organized in a compact, labeled plastic case for on-the-go convenience and clutter-free workspaces.
EFFORTLESS INSTALLATION - Soft, flexible design snaps on easily—perfect for quick fixes without hassle.
UNIVERSAL COMPATIBILITY - Ideal for plumbing, automotive, electrical, and general repairs—your go-to gasket kit for every project.
ALL IN ONE SEAL SOLUTION - 200 premium nitrile rubber O-rings in 15 essential sizes—ready for any repair challenge.
BUILT TO LAST UNDER PRESSURE - High tensile strength and heat resistance up to 120°C ensure durability in demanding environments.

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. Stored in a compact, labeled case, it offers easy installation and broad compatibility across plumbing, automotive, and electrical repairs, making it an essential toolkit upgrade for professionals and DIY enthusiasts alike.

Specifications

ASIN	B099DYKDLL
Best Sellers Rank	1,722 in DIY & Tools ( See Top 100 in DIY & Tools ) 2 in Tap O-Rings 5 in Washers
Brand	Newoutset
Colour	Black
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (3,582)
Item Diameter	1.9 Millimetres
Item Highlight	Electrical insulation seal kit for pipe plumber, insulated gasket set combination O-rings for plumbing and electrical repairs
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

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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.

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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.

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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€ 10.96

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered 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 Finland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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