Rubber & Elastomer Material Choices

What is Buna-N (Nitrile)?

Nitrile (Buna-N) is a versatile oil-resistant polymer offering good resistance to solvents, oils, water, and hydraulic fluids, alongside good compression set, abrasion resistance, and tensile strength. Nitrile should not be used with highly polar solvents like acetone and MEK, ozone, chlorinated hydrocarbons, or nitro hydrocarbons.

Nitrile Rubber Products

What types of Nitrile (Buna-N) products exist?

Rich-Rubber is a Nitrile Rubber Manufacturer of Buna-N components. We provide an extensive selection of Nitrile (Buna-N) products, including:

• Rubber Bumpers
• Rubber Bushings
• Rubber Connectors
• Rubber Gaskets
• Rubber Grommets
• Rubber Pads
• Rubber Seals
• Rubber Sleeve
• Rubber Valve

What are the Characteristics of BUNA-N compoments?

• Common Name:   Buna-N, Nitrile, NBR
• ASTM D2000 Classification:  BF, BG, BK
• Military (MIL-STD 417):  SB, MIL-C-8603, MIL-DTL-85052/1
• SAE Standard:  AMS3215, AMS3224
• Chemical Definition:  Butadiene Acrylonitrile

What are the General Characteristics of BUNA-N components?

• Durometer Range: 20 – 95
• Tensile Range (P.S.I.): 200 – 3000
• Elongation (Max. %): 600
• Compression Set: Good
• Resilience – Rebound: Good
• Abrasion Resistance: Excellent
• Tear Resistance: Good
• Solvent Resistance: Good to Excellent
• Oil Resistance: Good to Excellent
• Low Temperature Usage: 30° to -40°
• High Temperature Usage: up to 250°
• Aging Weather – Sunlight: Poor
• Adhesion to Metals: Good to Excellent

To learn more about our BUNA-N parts manufacturing and inventory, please contact Rich-Rubber today!