Plugs for Water | McMaster-Carr

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System of Measurement

Pipe Size

Fitting Type

Reducing Adapter

Thread Type

Chicago Fire Department

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Material

Stainless Steel

Drive Style

External Octagon

External Square

Pipe Material

Stainless Steel

For Use With

Abrasive Materials

Alcohol-Based Solvents

Bare Stranded Wire

Deutsch Style Connectors

Extension Cords

Keystone Connectors

Pharmaceuticals

Push-Button Holes

Socket Head Screws

Spade Terminals

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Acetic Acid (White Vinegar) (75% Concentration)

Ammonium Hydroxide (0-3% Concentration)

Ammonium Hydroxide (3-6% Concentration)

Calcium Chloride

Deionized Water

Diesel Exhaust Fluid

Ethylene Glycol

Gasoline (Up to 10% Ethanol)

Hydraulic Fluid

Hydraulic Fluid (Petroleum Based)

Hydrochloric Acid

Hydrochloric Acid (10% Concentration)

Hydrochloric Acid (25% Concentration)

Hydrochloric Acid (37% Concentration)

Isopropyl Alcohol

Liquid Nitrogen

Magnesium Chloride

Methyl Ethyl Ketone (MEK)

Mineral Spirits

Nitric Acid (0-3% Concentration)

Nitric Acid (3-6% Concentration)

Nitric Acid (10% Concentration)

Phosphoric Acid

Phosphoric Acid (70% Concentration)

Phosphoric Acid (85% Concentration)

Potassium Hydroxide

Propylene Glycol

Salt Water (30% Concentration)

Sodium Carbonate (Soda Ash)

Sodium Chloride

Sodium Hydroxide (Caustic Soda)

Sodium Hydroxide (Caustic Soda) (0-3% Concentration)

Sodium Hydroxide (Caustic Soda) (3-6% Concentration)

Sodium Hydroxide (Caustic Soda) (50% Concentration)

Sulfur Hexafluoride

Sulfuric Acid (30% Concentration)

Sulfuric Acid (70% Concentration)

Sulfuric Acid (75% Concentration)

Toluene (Methylbenzene)

Tungsten Hexafluoride

Thread Size

Length

Gender

Maximum Pressure @ Temperature

10 psi @ 70° F

20 psi @ 70° F

25 psi @ 70° F

30 psi @ 70° F

50 psi @ 70° F

60 psi @ 70° F

70 psi @ 70° F

75 psi @ 70° F

90 psi @ 70° F

100 psi @ 70° F

125 psi @ 70° F

150 psi @ 70° F

175 psi @ 70° F

180 psi @ 70° F

200 psi @ 70° F

Drive Size

Body Shape

Flange Material

Stainless Steel

Shape

Pressure Class

Plug Construction

Pipe Schedule

Finish

Black Zinc Plated

Molybdenum Disulfide Coated

Zinc Phosphate Coated

Fitting Connection

Spec Image

Spec Image

Spec Image

Push to Connect

Spec Image

Quick Disconnect

Specifications Met

Federal Specification

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

How can we improve?

3,962 Products

Fluid Handling

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Tubing Flow Stops

Tubing Flow Stops

Temporarily block water flow to make soldering repairs without waiting for your line to drain

Hose and Hose Fittings

Hose and Hose Fittings

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

Sights

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

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

Heat Exchanger Plugs

Heat Exchanger Plugs

Plug leaky internal tubes in heat exchangers

Heating Elements

Heating Elements

Turn electrical current into heat

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

Corrosion-Inhibiting Rods and Pads

Corrosion-Inhibiting Rods and Pads

Protect tanks, water heaters, and heat exchangers from rust; also known as sacrificial anodes

Safety Equipment

Fire Hydrant Caps

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

Fire Hydrant Plugs

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

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