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Your cart is empty.This O-Ring set is made of Black EPDM, has a durometer of 70A, and includes 200 pieces covering 12 dash sizes. The rings have a Round cross-section and can be used across a wide temperature range from-67 degrees F (-55 degrees C) to 257 degrees F (125 degrees C). The rings come in a plastic storage case designed for organization and portability. Designed for use in a variety of sealing applications, this EPDM O-Ring set meets standards defined by Aerospace Standard AS568A for quality assurance. The set includes the following O-Rings: 35 pieces each for dash sizes 010, 011; 25 pieces for 012, 110; 15 pieces for 111; 10 pieces for 112, 113, 114, 115, 116; 8 pieces for 211; and 7 pieces for 212. Ethylene propylene diene monomer (EPDM) is compatible for use with water and steam, silicone oil and grease, polar solvents (alcohols), acids, glycol-based brake fluids, ozone, and weathering. It is vulnerable to many oils, gasoline, and solvents. This material meets ASTM International standards. The durometer hardness of this EPDM O-Ring is 70A. Durometers measure the hardness of a material and its resistance to permanent indentation. A higher durometer value indicates greater resistance to indentation. On a scale of 0 to 100, a value of 0 indicates that a sample was completely penetrated, while a value of 100 shows no indentation in the sample. The letter following the number identifies the shore scale, which is either shore A or D. Shore A is used for rubber, while shore D is used for harder plastics. O-rings provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves, and various cylinders. They are circular in shape, with a round cross section, and a hole in the center, similar to a doughnut. O-rings are available in various AS568A dash sizes as well as Metric sizes. O-ring size is defined by the inside diameter (ID), outisde diameter (OD), and cross-sectional (CS) diameter. What's in the box? 35 pieces each for dash sizes 010, 011 25 pieces for 012, 110; 15 pieces for 111 10 pieces for 112, 113, 114, 115, 116 8 pieces for 211; and 7 pieces for 212 plastic storage case with label to identify sizes
Bruce A. Marien
Reviewed in the United States on January 25, 2025
purely functional as advertised.
Greg
Reviewed in the United States on February 21, 2024
Happy that the o rings worked well
jack
Reviewed in the United States on March 2, 2018
lots of sizes
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