---
product_id: 555019338
title: "Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs"
brand: "othmro"
price: "246 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/555019338-othmro-12mmx5mmx3-5mm-black-nitrile-rubber-nbr-sealing-nbr-o
store_origin: RO
region: Romania
---

# Superior resistance to oils & greases Wide temp range -30°C to 100°C 12mm x 5mm x 3.5mm precision size Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs

**Brand:** othmro
**Price:** 246 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with Othmro’s ultimate NBR O-Rings!

## Quick Answers

- **What is this?** Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs by othmro
- **How much does it cost?** 246 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/555019338-othmro-12mmx5mmx3-5mm-black-nitrile-rubber-nbr-sealing-nbr-o)

## Best For

- othmro enthusiasts

## Why This Product

- Trusted othmro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Pack Advantage:** 50 pieces per pack—stock up and never run out during critical maintenance.
- • **Chemical Resilience:** Nitrile rubber resists petroleum oils, hydraulic fluids, and greases for long-lasting durability.
- • **Temperature Toughness:** Operates flawlessly from -30°C to 100°C, ready for extreme environments.
- • **Versatile Application:** Ideal for crankshafts, camshafts, differentials, shock absorbers, and more—your go-to sealing solution.
- • **Precision Engineered Fit:** Exact 12x5x3.5mm sizing ensures seamless sealing in automotive and industrial applications.

## Overview

Othmro’s 12mm x 5mm x 3.5mm black nitrile rubber O-rings deliver precision sealing with exceptional wear and chemical resistance. Designed for automotive and industrial use, these 50 durable pieces withstand temperatures from -30°C to 100°C, preventing leaks and contamination in critical machinery components.

## Description

1.Buna N or Nitrile has good mechanical properties when compared with other elastomers and high wear resistance. Good resistance to many petroleum oils, greases, hydraulic fluids, alcohol, mineral oil and grease.2.This O-ring is made of black nitrile rubber, has a durometer of 50A, and is designed for use in a wide variety of sealing applications.

## Features

- Product Name : O Ring;Material : Nitrile Rubber(NBR)
- Size -12mmx5mmx3.5mm, Color:Black
- Applications - Widely used in automobiles, motorcycle crankshafts, camshafts, differentials, shock absorbers, engines, axles, front and rear wheels and other parts.
- Functions - It can prevent dust and impurities into inside of the machine, and prevent lubricating oil from leaking.
- Working Temperature Range - From -22 degrees F (-30 degrees C) to 212 degrees F (100 degrees C).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Nitrile Rubber |
| Nominal Inside Diameter | 12 Millimetres |
| Brand | Othmro |
| UPC | 889575477451 |
| Manufacturer | Othmro |
| Net Quantity | 50.0 Count |
| Number of Memory Sticks | 18 |
| Item Weight | 10 g |
| Package Dimensions | 9.8 x 7.2 x 1.4 cm; 10 g |
| Item part number | OTH190815Y-0163 |
| Are batteries included? | No |

## Product Details

- **Material:** Nitrile Rubber
- **Nominal Inside Diameter:** 12 Millimetres
- **Brand:** Othmro
- **UPC:** 889575477451
- **Manufacturer:** Othmro

## Images

![Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs - Image 1](https://m.media-amazon.com/images/I/51RJoUbyjPL.jpg)
![Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs - Image 2](https://m.media-amazon.com/images/I/61Yug6hzJaL.jpg)
![Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs - Image 3](https://m.media-amazon.com/images/I/51Dm0fUCYHL.jpg)
![Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs - Image 4](https://m.media-amazon.com/images/I/518jB9Pa6BL.jpg)
![Othmro 12mmx5mmx3.5mm Black Nitrile Rubber（NBR） Sealing NBR O Rings Gaskets Washers Grommets 50pcs - Image 5](https://m.media-amazon.com/images/I/518jB9Pa6BL.jpg)

## Available Options

This product comes in different **Size** options.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-24*