Main specs
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Manufacturer Part Number
75039377
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Specification
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Material
70 D Nitrile Rubber
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Specifications
-22 to 212 deg F
Features
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NBR is a very commonly used material for O-rings because of its good mechanical properties, its resistance to lubricants and greases and its relatively low cost
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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%
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Low ACN content ensures good flexibility at low temperatures, but offers limited resistance to oils and fuels
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As the ACN content increases, the low temperature flexibility reduces and the resistance to oils and fuels improves
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Physical and chemical resistance properties of NBR materials are also affected by the cure system of the polymer
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Peroxide-cured materials have improved physical properties, chemical resistance and thermal properties as compared to sulfur-donor-cured materials
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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
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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)
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NBR also has low resistance to ozone, weathering and aging, but in many applications this has no negative effect
Additional Information
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Includes
(1) 1/16 in CS x 7 ft L Cord, (1) 3/32 in CS x 7 ft L Cord, (1) 1/8 in CS x 7 ft L Cord, (1) 3/16 in CS x 7 ft L Cord, (1) 1/14 in CS x 7 ft L Cord, Splicing Jig, Glue and Small Knife
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Standards/Approvals
ASTM D1418|DNV|ISD Certified|NFPA Listed|PTDA
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Alternative Part Number
N70SPLKIT
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