Glossary
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- ABS
- Acrylonitrile-Butadiene-Styrene
- AISI
- American Iron and Steel Institute
- all-thread
- Threaded rod from end to end available in various metals, lengths and sizes
- ANSI
- American National Standards Institute
- ASTM
- American Society for Testing and Materials
- AWG
- American Wire Gauge
- AWS
- American Welding Society
- b.c.
- Bolt Circle
- CFM
- Cubic Feet per Minute
- CNC
- Computer Numerical Control
- Co
- Cobalt - as used in bits (not to be confused with CO)
- CO
- Carbon Monoxide
- DCEN
- Direct Current Electrode Negative
- DCEP
- Direct Current Electrode Positive
- DSAW
- Double Submerged Arc Welding
- DWV
- Drain Waste Vetilation
- ECM
- Electro Chemical Machining
- EDM
- Electrical Discharge Machining
- FDM
- Fused Deposition Modeling
- FPS
- Feet Per Second
- FPT
- Female (internal) NPT thread
- GDT
- Geometric Dimensioning and Tolerancing
- GMAW
- Gas Metal Arc Welding also known as MIG welding
- GTAW
- Gas Tungsten Arc Welding also known as Heliarc and TIG welding
- IC
- Indexable Carbide Integrated Circuit Internal Combustion
- ID
- Inside Diameter
- IPS
- Inches Per Second
- ISO
- International Organization for Standardization
- ITI
- Industrial Technology Institute
- JIS
- Japanese Industrial Standards
- LBC
- Laser Beam Cutting
- LBW
- Laser Beam Welding
- LH
- Left Hand (as in thread)
- LMC
- Least Material Conditon Used in geometric tolerancing
- LOM
- Laminated Object Modeling
- MAP
- Manufacturing Automation Protocol
- MIG
- Metal Inert Gas welding process
- MMC
- Maximum Material Condition Used in geometric tolerancing
- MOSFET
- Metal Oxide Semiconductor Field Effects Transistor
- MPT
- Male (external) NPT thread
- MT
- Morse Taper, usually followed with a number; 0, 1, 2, etc.
- MTBF
- Mean Time Between Failures
- MTTF
- Mean Time To Failure
- MTTR
- Mean Time To Repair
- MWP
- Maximum Working Pressure
- NC
- Numeric Control
- NEMA
- National Electrical Manufacturer's Association
- NPS
- Nominal Pipe Size
- NPS
- National Pipe Straight
- NPT
- National Pipe Thread
- NPTF
- Dryseal American National Standard Taper Pipe thread
- OD
- Outside Diameter
- OEM
- Original Equipment Manufacturer
- PAC
- Plasma Arc Cutting
- PAW
- Plasma Arc Welding
- PSI
- Pounds per Square Inch
- PSIA
- Pounds per Square Inch Absolute
- PSIG
- Pounds per Square Inch Gauge
- PTFE
- Polytetrafluroethylene polymer Teflon is DuPont trademark for PTFE
- QC
- Quick Change - referring to drive gears for a lathe or mill
- RA
- Rockwell Hardness "A" Scale
- RB
- Rockwell Hardness "B" Scale
- RC
- Rockwell Hardness "C" Scale
- RFS
- Regardless of Feature Size Used in geometric tolerancing
- RH
- Right Hand (as in thread)
- RP
- Rapid Prototyping
- RPM
- revolutions per minute
- RPS
- Revolutions Per Second
- RTL
- Resistor-Transistor Logic
- SAE
- Society of Automotive Engineers
- SCFM
- Standard Cubic Feet per Minute
- SFM
- Surface Feet per Minute
- SLS
- Selective Laser Sintering
- SMAW
- Shielded Metal Arc Welding
- SME
- Society of Manufacturing Engineers
- STL
- Stereo Lithography
- SW
- Stud Arc Welding`
- TIG
- Tungsten Inert Gas welding process
- TIR
- Total Indicator Reading
- TPI
- Threads Per Inch
- TSP
- Trisodium Phosphate used in metal cleaning
- UL
- Underwriter's Laboratory
- UNC
- Unified Coarse - referring to threads
- UNEF
- Unified Extra Fine Thread
- UNF
- Unified Fine - referring to threads
- WP
- Working Pressure