| MSS SP-100 | Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm Type Valves |
| MSS SP-101 | Part-Turn Valve Actuator Attachment – Flange and Driving Component Dimensions and Performance Characteristics |
| MSS SP-102 | Multi-Turn Valve Actuator Attachment – Flange and Driving Component Dimensions and Performance Characteristics |
| MSS SP-104 | Wrought Copper Solder Joint Pressure Fittings |
| MSS SP-105 | Instrument Valves for Code Applications |
| MSS SP-106 | Cast Copper Alloy Flanges and Flanged Fittings, Class 125, 150 and 300 |
| MSS SP-108 | Resilient-Seated Cast Iron-Eccentric Plug Valves |
| MSS SP-109 | Welded Fabricated Copper Solder Joint Pressure Fittings |
| MSS SP-110 | Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends |
| MSS SP-111 | Gray-Iron and Ductile-Iron Tapping Sleeves |
| MSS SP-112 | Quality Standard for Evaluation of Cast Surface Finishes -Visual and Tactile Method. This SP must be used with a 10-surface, three dimensional Cast Surface Comparator, which is a necessary part of the Standard. |
| MSS SP-113 | Connecting Joint between Tapping Machines and Tapping Valves |
| MSS SP-114 | Corrosion Resistant Pipe Fittings Threaded and Socket Welding, Class 150 and 1000 |
| MSS SP-115 | Excess Flow Valves, 1 1/4 NPS and Smaller, for Natural Gas Service |
| MSS SP-116 | Service Line Valves and Fittings for Drinking Water Systems |
| MSS SP-117 | Bellows Seals for Globe and Gate Valves |
| MSS SP-118 | Compact Steel Globe & Check Valves – Flanged, Flangeless, Threaded & Welding Ends (Chemical & Petroleum Refinery Service) |
| MSS SP-119 | Factory-Made Wrought Belled End Socket-Welding Fittings |
| MSS SP-120 | Flexible Graphite Packing System for Rising Stem Steel Valves – Design Requirements |
| MSS SP-121 | Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves |
| MSS SP-122 | Plastic Industrial Ball Valves |
| MSS SP-123 | Non-Ferrous Threaded and Solder-Joint Unions for Use With Copper Water Tube |
| MSS SP-124 | Fabricated Tapping Sleeves |
| MSS SP-125 | Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check Valves |
| MSS SP-126 | Steel In-Line Spring-Assisted Center Guided Check Valves |
| MSS SP-127 | Bracing for Piping Systems Seismic-Wind-Dynamic Design, Selection, Application |
| MSS SP-128 | Ductile Iron Gate Valves |
| MSS SP-129 | Copper-Nickel Socket-Welding Fittings and Unions |
| MSS SP-130 | Bellows Seals for Instrument Valves |
| MSS SP-131 | Metallic Manually Operated Gas Distribution Valves |
| MSS SP-132 | Compression Packing Systems for Instrument Valves |
| MSS SP-133 | Excess Flow Valves for Low Pressure Fuel Gas Appliances |
| MSS SP-134 | Valves for Cryogenic Service Including Requirements for Body/Bonnet Extensions |
| MSS SP-135 | High Pressure Steel Knife Gate Valves |
| MSS SP-136 | Ductile Iron Swing Check Valves |
| MSS SP-137 | Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components |
| MSS SP-138 | Quality Standard Practice for Oxygen Cleaning of Valves & Fittings |
| MSS SP-139 | Copper Alloy Gate, Globe, Angle, and Check Valves for Low Pressure/Low Temperature Plumbing Application |
| MSS SP-25 | Standard Marking System for Valves, Fittings, Flanges and Unions |
| MSS SP-42 | Class 150 Corrosion Resistant Gate, Globe, angle and Check Valves with Flanged and Butt Weld Ends |
| MSS SP-43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
| MSS SP-44 | Steel Pipeline Flanges |
| MSS SP-45 | Bypass and Drain Connections |
| MSS SP-51 | Class 150LW Corrosion Resistant Cast Flanges and Flanged Fittings |
| MSS SP-53 | Quality Standard for Steel Castings and Forgings for Valves, Flanges and Fittings and Other Piping Components – Magnetic Particle Exam Method |
| MSS SP-54 | Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components – Radiographic Examination Method |
| MSS SP-55 | Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components – Visual Method for Evaluation of Surface Irregularities |
| MSS SP-58 | Pipe Hangers and Supports – Materials, Design, Manufacture, Selection, Application, and Installation |
| MSS SP-6 | Standard Finishes for Contact Faces of Pipe Flanges and Connecting & End Flanges of Valves and Fittings |
| MSS SP-60 | Connecting Flange Joint Between Tapping Sleeves and Tapping Valves |
| MSS SP-61 | Hydrostatic testing of steel valves |
| MSS SP-65 | High Pressure Chemical Industry Flanges and threaded Stubs for Use with Lens Gaskets |
| MSS SP-67 | Butterfly Valves |
| MSS SP-68 | High Pressure Butterfly Valves with Offset Design |
| MSS SP-69 | Pipe Hangers and Supports – Selection and Application |
| MSS SP-70 | Cast Iron Gate Valves, Flanged and Threaded Ends |
| MSS SP-71 | Cast Iron Swing Check Valves, Flanged and Threaded Ends |
| MSS SP-72 | Ball valves with Flanged or Butt-Welding ends for General Service |
| MSS SP-73 | Brazing Joints for Copper and Copper Alloy Pressure Fittings |
| MSS SP-75 | Specification for High Test Wrought Butt Welding Fittings |
| MSS SP-77 | Guidelines for Pipe Support Contractual Relationships |
| MSS SP-78 | Cast Iron Plug Valves |
| MSS SP-79 | Socket Welding Reducer Inserts |
| MSS SP-80 | Bronze Gate, Globe Angle and Check Valves |
| MSS SP-81 | Stainless Steel, Bonnetless, Flanged Knife Gate Valves |
| MSS SP-82 | Valve Pressure Testing Methods (withdrawn, replaced by MSS SP-01) |
| MSS SP-83 | Class 300 Steel Pipe Unions, Socket Welding and Threaded |
| MSS SP-84 | Steel valves socket welding and threaded ends |
| MSS SP-85 | Cast Iron Globe and Angle Valves, Flanged and Threaded Ends |
| MSS SP-86 | Guidelines for Metric Data in Standards for Valves, Flanges, Fittings and Actuators |
| MSS SP-88 | Diaphragm Valves |
| MSS SP-89 | Pipe Hangers and Supports -Fabrication and Installation Practices |
| MSS SP-9 | Spot Facing for Bronze, Iron and Steel Flanges |
| MSS SP-90 | Guidelines on Terminology for Pipe Hangers and Supports |
| MSS SP-91 | Guidelines for Manual Operation of Valves |
| MSS SP-92 | MSS Valve User Guide |
| MSS SP-93 | Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components – Liquid Penetrant Exam Method |
| MSS SP-94 | Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, Fittings, and Other Piping Components – Ultrasonic Examination Method |
| MSS SP-95 | Swage(d) Nipples and Bull Plugs |
| MSS SP-96 | Guidelines on Terminology for Valves and Fittings |
| MSS SP-97 | Integrally Reinforced Forged Branch Outlet Fittings – Socket Welding, Threaded and Buttwelding Ends |
| MSS SP-98 | Protective Coatings for the Interior of Valves, Hydrants, and Fittings |
| MSS SP-99 | Instrument Valves |