N90459

459 O-RING NITRILE (NBR, BUNA)
90 DUROMETER BLACK
CS: .275″ (6.99MM)
ID: 14.975″ (380.37MM)

N90459

Quantity Pricing (ea)
  • 1 for $15.60
  • 5 for $14.00
  • 25 for $12.50
  • 50 for $10.90
  • 100 for $9.34
Stock & Availability (ea)
In Stock: 22
Inbound Stock: 0
Offsite Stock: 113 ($50 Line Min)
Expedited Shipping*: 06/15/2026
Standard Shipping: 09/02/2026
New Production: Unlimited ($250 Line Min)
Expedited Shipping*: 07/27/2026
Standard Shipping: 10/14/2026
*Add your desired qty and click ADD TO CART to see expedite fees and options.

Interchange Part Numbers

  • MCMASTER-CARR 5308T467

Zusätzliche Informationen

Gewicht 0.1355 lbs
Shipping Dimensions 15.525 × 15.525 × 0.275 in
Material

Color

Size

459
Durometer

Minimum Temperature -13
Maximum Temperature 250

Beschreibung

Product Drawing: N90459.pdf

SPEC SHEET: Nitrile (Buna) 90 Durometer.pdf

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&degC (-40&degF)
Standard High Temp: 100&degC (212&degF)