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About Nuts, Materials, and Finishes
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Super-Corrosion-Resistant Nickel Alloy Hex Nuts

These nuts have excellent corrosion resistance and are often used in marine environments and chemical-processing plants. They may be mildly magnetic. C276 nickel is also known as hastelloy.
For technical drawings and 3-D models, click on a part number.
Nuts for Ultra-Corrosion-Resistant
Yor-Lok Fittings for Nickel Alloy Tubing

- For Use With: Acetic Acid, Air, Bleach, Cutting Oil, Diesel Fuel, Formic Acid, Fuel Oil, Gasoline, Hydraulic Fluid, Iron Chlorides, Mineral Oil, Salt Water, Steam, Water
- Temperature Range: 0° to 1,000° F
- Tubing: Use with seamless soft C276 nickel
- Specifications Met: ASME B31.3
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Use these C276 nickel Hastelloy nuts with Yor-Lok sleeves and fittings to create a strong, leak-resistant seal. With the best corrosion resistance of any metal tube fitting nuts we offer, they stand up to aggressive chemicals and resist pitting and cracking from stress.
For technical drawings and 3-D models, click on a part number.