V50276

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Stock & Availability ()

In Stock: 0

Inbound Stock: 0

Offsite Stock: 0 ($50 Line Min)

New Production: Unlimited ($250 Line Min)

Expedited Shipping*: 01/28/2025

Standard Shipping: 03/19/2025

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Additional information

Weight	0.02474 lbs
Shipping Dimensions	11.262 × 11.262 × 0.139 in
Material	Nitrile
Color	Black
Durometer	50
Size	276

Description

Nitrile Rubber (NBR)

Material Description

Nitrile rubber (NBR), also known as Buna N, is one of the most commonly used sealing elastomers due to its resistance to petroleum-based fuels and
lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. There are a number of common variations of
nitrile compounds.

Acrylonitrile Content

The acrylonitrile (ACN) content of the polymer chains can vary from 18% to 50%. Lower ACN content gives better low-temperature properties but inferior
resistance to fuels and polar lubricants. Higher ACN content gives lesser quality low-temperature properties but improved fuels and polar lubricants
resistance. Standard NBRs typically have 34% ACN content.

Cure system: Sulfur-cured

Standard Nitriles are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high
temperatures. Peroxide-cured nitriles have better heat resistance and lower compression sets but are more expensive and more difficult to process.

Temperature Range:

Standard Low Temp: -40°C (-40°F)

Standard High Temp: 100°C (212°F)