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MSS SP-119-2025
Factory-Made Wrought Belled-End Pipe Fittings for Socket-Welding
This Standard Practice covers the design and manufacturing requirements for factory-made, wrought, belled-end pipe fittings for socket-welding, formed from either tubular sections or flat material. Included are the overall dimensions, tolerances, materials, socket end details, heat treatment, marking, and other requirements for belled-end fittings in sizes NPS 1/2 through NPS 12.
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Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]