Brass Pipe Fittings | McMaster-Carr

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12,561 Products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

3,310 products

Tube Fittings

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

4,711 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

34 products

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

25 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

17 products

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

53 products

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

9 products

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

1,551 products

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

2 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

38 products

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

3 products

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

5 products

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

56 products

On-Off Valves

Start and stop flow through a line

1,402 products

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

21 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

74 products

Air Valves

Fill tanks, tires, and other pressurized equipment

17 products

Drain Valves

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

36 products

Breather Vents

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

28 products

Pressure Test Plugs

Tighten onto equipment to check pressure without permanently installing a gauge

4 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

16 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

1 product

Pipe Wrenches

Grasp and turn pipe, conduit, and fittings

19 products

Lubricating

Grease Fitting Adapters

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

12 products

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

31 products

Grease Fitting Junction Blocks

Send different types and amounts of grease from multiple grease fittings to lubricate several points

2 products

Grease Gun Nozzles

Replace nozzles on grease guns

36 products

Grease Gun Tip Adapters

Quickly switch between standard, button-head, and flush-style grease fittings

4 products

Grease Gun Tips

Attach to grease gun nozzles and direct a stream of lubricant into grease fittings on machinery

36 products

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

1 product

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Connect the female end of your garden hose to a faucet spout

4 products

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

21 products

Sink Drain Tailpieces

Connect drains to P-traps and S-traps

8 products

Toilet Mounts

Secure toilet components with flanges and hardware kits

6 products

Electrical

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

4 products

Fabricating and Machining

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

1 product