MSS Standards for individual purchase

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  • Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation

    Standard [CURRENT] 2025

    MSS SP-58:2025

    Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation

    This Standard Practice establishes an industry accepted basis for Manufacturers, Engineers, Erectors, Purchasers, Inspectors, Draftsmen, and others involved in the Materials, Design, Manufacture ...

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  • High-Strength, Wrought, Butt-Welding Fittings

    Standard [CURRENT] 2025

    MSS SP-75:2025

    High-Strength, Wrought, Butt-Welding Fittings

    This Standard Practice covers factory-made, seamless and electric welded carbon and low-alloy steel, butt-welding fittings for use in high pressure gas and oil transmission and distribution systems;

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  • Service-Line Valves and Fittings for Drinking Water Systems

    Standard [CURRENT] 2025

    MSS SP-116:2025

    Service-Line Valves and Fittings for Drinking Water Systems

    To provide a Standard Practice covering most of the significant valves and fittings used in drinking water service-line systems including both buried and non-buried valves, fittings, meter ...

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  • In-Line, Spring-Loaded, Center-Guided Check Valves (Carbon, Alloy Steel, Stainless Steel, and Nickel Alloys)

    Standard [CURRENT] 2025

    MSS SP-126:2025

    In-Line, Spring-Loaded, Center-Guided Check Valves (Carbon, Alloy Steel, Stainless Steel, and Nickel Alloys)

    This Standard Practice covers in-line, center-guided, internally spring-assisted type check valves made of steel, or other alloys listed in Table 1 of ASME B16.34. These valves, having the feature ...

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  • Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components

    Standard [CURRENT] 2025

    MSS SP-137:2025

    Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components

    This Standard Practice provides methods and acceptance standards for Positive Material Identification (PMI) of metal flanges, fittings, valves, pressure boundary parts of valves, and other piping ...

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    from 137.85 EUR VAT excluded

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  • Large Diameter Slip-On and Lap-Joint Flanges

    Standard [CURRENT] 2025

    MSS SP-165:2025

    Large Diameter Slip-On and Lap-Joint Flanges

    This Standard Practice covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for forged steel slip-on and lap-joint flanges from NPS 26 through NPS 60.

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  • Factory-Made Wrought Belled-End Pipe Fittings for Socket-Welding

    Standard [CURRENT] 2025

    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.

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  • Class 3000 and 6000 Pipe Unions, Socket Welding and Threaded (Carbon Steel, Alloy Steel, Stainless Steels, and Nickel Alloys)

    Standard [CURRENT] 2025

    MSS SP-83:2025

    Class 3000 and 6000 Pipe Unions, Socket Welding and Threaded (Carbon Steel, Alloy Steel, Stainless Steels, and Nickel Alloys)

    This Standard Practice establishes envelope and other essential dimensions, finish, tolerances, testing, marking, material, and minimum performance requirements for forged carbon steel, alloy ...

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    from 137.85 EUR VAT excluded

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  • Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded, and Buttwelding Ends

    Standard [CURRENT] 2025

    MSS SP-97:2025

    Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded, and Buttwelding Ends

    This Standard Practice includes essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements for 90° and 45° integrally reinforced forged branch outlet ...

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    from 142.40 EUR VAT included

    from 133.08 EUR VAT excluded

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  • Valves for Cryogenic Service, Including Requirements for Body/Bonnet Extensions

    Standard [CURRENT] 2025

    MSS SP-134:2025

    Valves for Cryogenic Service, Including Requirements for Body/Bonnet Extensions

    This Standard Practice covers additional requirements for material, design, dimensions, fabrication, non-destructive examination, and pressure testing of metallic valves intended for service at ...

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    from 203.40 EUR VAT included

    from 190.09 EUR VAT excluded

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