Fitting Gauges | McMaster-Carr

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System of Measurement

Pipe Size

For Use With

Alcohol-Based Solvents

Liquids with Solids

Pharmaceuticals

Thread Type

UN/UNF (SAE Straight)

Material

Graphite Composite

Samarium Cobalt

Stainless Steel

Connection Location

Display Type

Gender

Maximum Temperature

Less than 100° F

100° F to 199° F

200° F to 249° F

250° F to 499° F

500° F or greater

Less than 75° C

75° C to 99° C

100° C to 149° C

150° C to 199° C

200° C or greater

Dial Diameter

REACH

RoHS

Compliant with Exemptions

Measurement Unit

Centimeters of Mercury

Cubic Centimeters

Inches of Mercury

Inches of Water

Kilograms per Square Centimeter

Liters per Minute

Export Control Classification Number (ECCN)

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Fitting Connection

Spec Image

Push to Connect

Quick Disconnect

DFARS Specialty Metals

Graduations

Maximum Pressure

Less than 1,000 psi

1,000 psi to 1,999.9 psi

2,000 psi to 2,999.9 psi

3,000 psi to 9,999.9 psi

10,000 psi or greater

Less than 10,000 kPa

10,000 kPa to 19,999 kPa

20,000 kPa to 29,999 kPa

30,000 kPa to 99,999 kPa

100,000 kPa or greater

Minimum Temperature

-100° F or less

-99° F to -50° F

-49° F to -1° F

0° F to 49° F

50° F or greater

Connects To

Measures

Concave Corners

Corner-Weld Leg Length

Differential Pressure

Differential Vacuum

Excess Weld Metal

Go/No-Go Fit-Up Gap

Pipe Wall Thickness

Relative Humidity

Dial Type

Scale Type

Lens Material

Polyurethane Rubber

Pressure Numeric Increments

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8,716 Products

Thread Size Identifiers

Pipe, Tubing, and Hose Size Identifiers

Pipe, Tubing, and Hose Size Identifiers

Check pipe thread size and diameter

Pipe Thread and Thread Pitch Identifiers

Pipe Thread and Thread Pitch Identifiers

Check NPT and BSPT pipe sizes and measure thread pitch

All-in-One Identifiers

All-in-One Identifiers

Find tube, pipe, fastener, wire, and drill bit sizes with one tool

Thread Identifier Sets

Thread Identifier Sets

Includes calipers and gauges to identify external and internal threads

Pipe Thread Identifiers

Pipe Thread Identifiers

Insert NPT pipe to check thread size and taper

Threads per Inch and Thread Pitch Size Checkers

Threads per Inch and Thread Pitch Size Checkers

Calculate pitch diameter with the included wires and equations

Other Products

Angle Identifiers

Angle Identifiers

Place the edges against fittings, dies, and other objects to quickly verify angles up to 45°

Pressure Gauges

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

Pipe Size Measuring Kits

Pipe Size Measuring Kits

Connect to pipe and fittings to determine their size without additional measuring tools

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

Tape Measures

Standard, long, center-finding, and flexible tape measures

Ring Gauges

Confirm your workpiece's outer diameter or external threads are within tolerance

Flow Sights

Visually confirm flow and inspect liquid color and clarity

Pressure Gauge Snubbers

Pressure Gauge Snubbers

Reduce flow to suppress vibration and pressure spikes that can damage gauges

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

Flowmeters

Measure the flow rate of liquid or gas through your system

Pressure Test Gauges

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

Pressure Transmitters

Pressure Transmitters

Send pressure readings to controllers and remote displays

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

Sights

Observe and monitor the contents of pipes, tanks, and other containers

Flow Switches

Turn equipment on or off when flow rate reaches a set point

Vacuum Gauges

Take vacuum readings in pumps, packaging equipment, and suction lines

Differential Pressure Gauges

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

Pressure and Vacuum Transmitters

Pressure and Vacuum Transmitters

Convert pressure and vacuum measurements into a signal sent to remote displays and controllers

Differential Pressure Transmitters

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Differential Pressure and Vacuum Gauges

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

Vacuum Transmitters

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

Gauge Guards

Shield gauges from corrosive liquids and gases; also called diaphragm seals

Calibration Columns

Calibration Columns

Calibrate the flow rate of metering pumps

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Liquid-Level Transmitters

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

Ring Gauge Holders

Ring Gauge Holders

Keep ring gauges still to measure cylindrical parts or threads quickly and repeatedly

Flow Transmitters

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

Vacuum Test Gauges

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

Contour Gauges

Transfer contours, patterns, and shapes for jobs such as installing floor tile and pipe insulation

Humidity-Indicating Plugs

Humidity-Indicating Plugs

Monitor humidity in sealed containers without opening them, protecting the inside from contamination

Thermocouples

Measure and transmit liquid, gas, and surface temperature

Pipe Size Chart/Rulers

Pipe Size Chart/Rulers

Curl around pipe to gauge its size, measure its diameter, or mark lines

Pressure Indicators

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

Temperature and Humidity Transmitters

Temperature and Humidity Transmitters

Regulate heating and cooling by sending temperature and humidity levels to PLCs and controllers

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)