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Dichtomatik N70243 75100172 NBR 70 O-Rings
MODEL 75100172
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Brand Minimum Order Quantity: 131
Typically Ships in: 1 day
Returnable: See conditions
Dichtomatik Dichtomatik N70243
UPC: | UNSPSC: 31401503 | GTIN:
Gaskets & Packing > O-Rings & O-Ring Kits > O-Rings
DICHTOMATIK O-Ring, 4.109 in Inside Dia, 4.387 in Outside Dia, Cross Section: 0.139 in, Circular Torus Cross Section, Dash Number: 243, 70 Shore A Durometer, 40 to 120 deg F, Nitrile Rubber, Black, Import
Features:
- Good chemical resistance to mineral oils and greases
- The physical and chemical resistance properties of NBR materials are determined by the acrylonitrile (ACN) content of the base polymer which can vary between 18 and 50%
- Low ACN content ensures good flexibility at low temperatures, but offers limited resistance to oils and fuels
- As the ACN content increases, the low temperature flexibility reduces and the resistance to oils and fuels improves
- Physical and chemical resistance properties of NBR materials are also affected by the cure system of the polymer
- Peroxide cured materials have improved physical properties, chemical resistance and thermal properties as compared to sulfur-donor-cured materials
- Standard grades of NBR are typically resistant to mineral oil-based lubricants and greases, many grades of hydraulic fluids, aliphatic hydrocarbons, silicone oils and greases and water to about 80 deg C
- NBR is generally not resistant to aromatic and chlorinated hydrocarbons, fuels with a high aromatic content, polar solvents, glycol based brake fluids and non-flammable hydraulic fluids (HFD)
- NBR also has low resistance to ozone, weathering and aging, but in many applications this has no negative effect
Specs:
- Dash Number: 243
- Cross Section: 0.139 in
- Cross Section Shape: Circular Torus
- Durometer: 70 Shore A
- Temperature Rating: 40 to 120 deg F
- Domestic/Import: Import
- Inside Diameter: 4.109 in
- Outside Diameter: 4.387 in
- Material: Nitrile Rubber
- Color: Black
Certifications/Standards:
DNV Approved | FDA Compliant | ISD Certified | NFPA Listed | PTDA Certified
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