Name: O-ring 19.5x3 - NBR - Nitrile - 70 Shore A - Black - ORS3720
Brand: Eurolast
SKU: 3720
Price: 11.25 EUR
Availability: InStock

home navigate_next NBR - Nitrile O-Rings navigate_next O-ring 19.5x3 - NBR - Nitrile - 70 Shore A - Black - ORS3720

ID (Inner diameter) 19.5 mm

CS (Cross Section) 3 mm

Material NBR - Nitrile

Hardness 70 Shore A

Color Black

Item no. 3720

Material NBR - Nitrile

Hardness 70 Shore A

Color Black

AS568 Size Chart

Stock 61690 sentiment_satisfied_alt

picture_as_pdf Material Datasheet

Need a coating for this O-Ring? Request a quotation here keyboard_arrow_down All specifications

Country	Price	Transit days	Carrier
Algeria	€ 175,00	7 - 10	FedEx: International Economy
Argentina	€ 63,00	8 - 10	FedEx: International Economy
Australia	€ 45,00	8 - 10	FedEx: International Priority
Austria	€ 15,00	4 - 6	GLS: Euro Business Parcel
Belgium	€ 10,00	1 - 3	GLS: Euro Business Parcel
Bosnia and Herzegovina	€ 43,00	4 - 6	FedEx: International Priority
Brazil	€ 55,00	4 - 6	FedEx: International Priority
Bulgaria	€ 22,50	6 - 8	FedEx: International Economy
Canada	€ 45,00	2 - 4	FedEx: International Priority
China	€ 38,00	2 - 4	FedEx: International Economy
Croatia	€ 30,00	7 - 10	FedEx: International Economy
Cyprus	€ 28,00	3 - 5	GLS: Euro Business Parcel
Czech Republic	€ 20,00	3 - 5	FedEx: International Priority
Denmark	€ 13,00	2 - 4	GLS: Euro Business Parcel
Egypt	€ 175,00	7 - 10	FedEx: Regional Economy
Estonia	€ 20,00	4 - 6	FedEx: Regional Economy
Finland	€ 20,00	5 - 7	FedEx: Regional Economy
France	€ 10,00	2 - 4	GLS: Euro Business Parcel
French Polynesia	€ 70,00	6 - 8	FedEx: International Priority
Germany	€ 10,00	1 - 3	GLS: Euro Business Parcel
Ghana	€ 70,00	7 - 10	FedEx: Regional Economy
Greece	€ 25,00	4 - 6	FedEx: Regional Economy
Hungary	€ 23,00	1 - 3	FedEx: Regional Economy
Iceland	€ 43,00	7 - 10	FedEx: International Priority
India	€ 190,00	5 - 7	FedEx: International Priority
Indonesia	€ 45,00	5 - 7	FedEx: International Priority
Ireland	€ 18,00	3 - 5	FedEx: Regional Economy
Israel	€ 70,00	3 - 7	FedEx: International Economy
Italy	€ 20,00	1 - 3	FedEx: International Priority
Japan	€ 40,00	4 - 6	FedEx: International Economy
Korea, Democratic People's Republic of	€ 40,00	4 - 6	FedEx: International Economy
Korea, Republic of	€ 40,00	4 - 6	FedEx: International Economy
Kurwait	€ 40,00	7 - 10	FedEx: International Economy
Latvia	€ 28,00	4 - 6	GLS: Euro Business Parcel
Lithuania	€ 38,00	4 - 6	GLS: Euro Business Parcel
Luxembourg	€ 13,00	1 - 3	GLS: Euro Business Parcel
Macedonia	€ 40,00	7 - 10	FedEx: International Economy
Malaysia	€ 40,00	5 - 7	FedEx: International Economy
Malta	€ 30,00	4 - 6	GLS: Euro Business Parcel
Mexico	€ 63,00	5 - 7	FedEx: International Economy
Monaco	€ 23,00	3 - 5	FedEx: International Priority
Netherlands	€ 10,00	1 - 3	GLS: Euro Business Parcel
New Zealand	€ 52,50	7 - 10	FedEx: International Priority
Norway	€ 38,00	2 - 4	FedEx: International Priority
Oman	€ 40,00	7 - 10	FedEx: International Eoonomy
Peru	€ 53,00	4 - 8	FedEx: International Economy
Philippines	€ 45,00	4 - 8	FedEx: International Economy
Poland	€ 28,00	3 - 5	GLS: Euro Business Parcel
Portugal	€ 23.00	4 - 6	FedEx: Regional Economy
Romania	€ 28,00	4 - 6	FedEx: International Economy
Saudi Arabia	€ 45,00	4 - 6	FedEx: International Economy
Serbia and Montenegro	€ 43,00	2 - 4	FedEx: International Economy
Singapore	€ 45.00	4 - 6	FedEx: International Economy
Slovakia	€ 23,00	4 - 6	FedEx: Regional Economy
Slovenia	€ 23,00	4 - 6	FedEx: Regional Economy
Spain	€ 18,00	5 - 7	FedEx: Regional Economy
Sweden	€ 23,00	2 - 4	FedEx: Regional Economy
Switzerland	€ 38,00	2 - 4	FedEx: International Economy
Taiwan	€ 38,00	5 - 7	FedEx: International Economy
Turkey	€ 38,00	2 - 4	FedEx: International Priority
United Arab Emirates	€ 200,00	2 - 4	FedEx: International Priority
United Kingdom	€ 20,00	2 - 4	FedEx: Regional Economy
United States	€ 40,00	2 - 4	FedEx: International Priority
Vietnam	€ 45,00	5 - 7	FedEx: International Economy

Stock	Delivery time
315	Processed and shipped in week 2 - 2026
61.375	Processed and shipped in week 2 - 2026

€ 0,⁰⁹ Ex. VAT / per piece

€ 0,09 Incl. VAT

Price per piece

Processed and shipped in week 2 - 2026

This product has a minimum order quantity of 125 pieces.

check Simplified online ordering

check Express worldwide delivery

check Large stock available

check Next day delivery

check Simplified online ordering

check Express worldwide delivery

check Large stock available

check Next day delivery

Quantity	Per piece
125+	€ 0,0900
250+	€ 0,0948
500+	€ 0,0879
1000+	€ 0,0798
2500+	€ 0,0756
5000+	€ 0,0678
10000+	€ 0,0639

Often bought together

€ 35,95

Description

This NBR - Nitrile O-Ring has a diameter of 19.5x3 mm and is Black in color. The hardness of this O-ring 19.5x3 - NBR - Nitrile - 70 Shore A - Black - ORS3720 is 70 Shore A. Alternative names for the compound are Nitrile Rubber - NBR, and it is commonly produced by Lanxess - Zeon - and LG Chem. The O-Ring is typically used in and has an operating temperature range from -30 ºC to 135 ºC. O-Rings 12987 are referred to as 3720 and have a DIN 3771 size of 19.5x3. This item is equivalent to and has an approval. The chemical name of this O-Ring is Acrylonitrile butadiene rubber.

Specifications

In stock	Yes, 61690 pcs
Article number	3720
EAN	6150546469473
Alternative Size
DIN 3771 Size Chart info	19.5x3
Alternative Sizes
Size in text	nineteen comma fifty by three zero
SMS 1586 Size chart	19.5 X 3
Export specifications
Country of Origin	VN
Customs Code info	40169300
General Specifications
Material	NBR - Nitrile
Hardness info	70 Shore A
Color	Black
ID (Inner diameter) info	19.5 mm
CS (Cross Section) info	3 mm
Compound Number	107019001
Dimensions info	19.5x3
Seal type	O-ring
Other Specifications
Alternative names	Nitrile Rubber - NBR
Chemical Name info	Acrylonitrile butadiene rubber
Description 2	O-ring NBR - Nitrile 19.5x3
Product name	O-ring 19.5x3 Nitrile NBR
Trade names	Lanxess - Zeon - and LG Chem
Technical Specifications
Compression Set info	11 %
Specific Gravity info	1,28 (+/- 0,03) g/cm3
Temperature Max info	135 ºC
Temperature Min info	-30 ºC
Tensile Strength info	14,4 MPa
Ultimate Elongation info	389 %

download Download/print specifications PDF

Get a quote now

E-mail address*

Name*

Company Name

Country*

Phone number

Quantity*

Questions & comments*

All items marked with a * are required.

Stock	Delivery time
315	Processed and shipped in week 2 - 2026
61.375	Processed and shipped in week 2 - 2026

€ 0,⁰⁹ Ex. VAT / per piece

€ 0,09 Incl. VAT

Price per piece

Processed and shipped in week 2 - 2026

This product has a minimum order quantity of 125 units.

check Simplified online ordering

check Express worldwide delivery

check Large stock available

check Next day delivery

Quantity	Per piece
125+	€ 0,0900
250+	€ 0,0948
500+	€ 0,0879
1000+	€ 0,0798
2500+	€ 0,0756
5000+	€ 0,0678
10000+	€ 0,0639

Often bought together

€ 35,95

Name

Provider / Domain

Expiration

Description

cookiebar.accept

local

5 year

Accept the cookie bar.

cookiebar.settings

local

5 year

Settings from the cookie bar.

PHPSESSID

PHP.net

Sessions

Cookie generated by applications based on the PHP language. This is a general purpose identifier used to maintain user session variables. It is normally a random generated number, how it is used can be specific to the site, but a good example is maintaining a logged-in status for a user between pages.

Name

Provider / Domain

Expiration

Description

vistrk

local

30 days

Serverside tracking-system.

_clck

Microsoft
clarity.ms

1 year

This cookie is installed by Microsoft Clarity to store information of how visitors use a website and help in creating an analytics report of how the website is doing. The data collected including the number visitors, the source where they have come from, and the pages visited in an anonymous form.

_clsk

Microsoft
clarity.ms

session

_ga

Google

2 years

ID used to identify users

_gat*

Google

1 minute

Used to monitor number of Google Analytics server requests when using Google Tag Manager

_ga_*

Google

2 years

ID used to identify users

_ga_*

Google

2 years

ID used to identify users

_gid

Google

24 hours

ID used to identify users for 24 hours after last activity

Name

Provider / Domain

Expiration

Description

_gcl_au

Google

3 months

Used by Google AdSense for experimenting with advertisement efficiency across websites using their services.

_uetsid

Microsoft
.bing.com (3rd party) or .microsoft.com (3rd party)

30 minutes

This cookie is used by Bing to determine what ads should be shown that may be relevant to the end user perusing the site.

_uetvid

Microsoft
.bing.com (3rd party) or .microsoft.com (3rd party)

16 days

This is a cookie utilised by Microsoft Bing Ads and is a tracking cookie. It allows us to engage with a user that has previously visited our website.

Name

Provider / Domain

Expiration

Description

TawkConnectionTime

Tawk.to Chat

session

This cookie is used to determine the connection duration of tawk sessions.

_hjAbsoluteSessionInProgress

Hotjar

30 minutes

The cookie is set so Hotjar can track the beginning of the user's journey for a total session count. It does not contain any identifiable information.

_hjFirstSeen

Hotjar

30 minutes

The cookie is set so Hotjar can track the beginning of the user's journey for a total session count. It does not contain any identifiable information.

_hjIncludedInSessionSample*

Hotjar

30 minutes

This cookie is set to let Hotjar know whether that visitor is included in the data sampling defined by your site's daily session limit

_hjIncludedInSessionSample*

Hotjar

30 minutes

This cookie is set to let Hotjar know whether that visitor is included in the data sampling defined by your site's daily session limit

_hjSession_*

Hotjar

30 minutes

A cookie that holds the current session data. This ensues that subsequent requests within the session window will be attributed to the same Hotjar session.

_hjSession_*

Hotjar

30 minutes

A cookie that holds the current session data. This ensues that subsequent requests within the session window will be attributed to the same Hotjar session.

_hjSession_*

Hotjar

30 minutes

A cookie that holds the current session data. This ensues that subsequent requests within the session window will be attributed to the same Hotjar session.

_hjSession_*

Hotjar

30 minutes

A cookie that holds the current session data. This ensues that subsequent requests within the session window will be attributed to the same Hotjar session.

Name

Provider / Domain

Expiration

Description

twk_idm_key

unknown
unknown

unknown

gtm_session_start

unknown
unknown

unknown

gtm_pageview_count

unknown
unknown

unknown