Pipe Fittings | McMaster-Carr

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System of Measurement

Pipe Size

Material

Compressed Non-Asbestos Synthetic Fiber

Thread Type

Fitting Connection

Mechanical Joint

Gender

Pipe Schedule

For Use With

Abrasive Materials

Faucet Sprayers

Pipe Material

Stainless Steel

Flange Material

Stainless Steel

Connects To

Corrugated Pipe

Length

Pressure Class

Maximum Pressure @ Temperature

110 psi @ -350° F

200 psi @ -350° F

1,800 psi @ 0° F

2,000 psi @ 50° F

120 psi @ 60° F

400 psi @ 60° F

150 psi @ 65° F

14.5 psi @ 70° F

15 psi @ 70° F

25 psi @ 70° F

30 psi @ 70° F

40 psi @ 70° F

50 psi @ 70° F

Threading

Threaded on Both Ends

Threaded on One End

Fitting Material

Stainless Steel

Tube OD

Body Shape

Round with Lugs

OD

0.053" to 0.12"

0.079" to 0.15"

0.111" to 0.177"

ID

0.022" to 0.079"

0.025" to 0.08"

0.03" to 0.083"

RoHS

Compliant with Exemptions

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

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51,668 Products

Fluid Handling

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

12,690 products

Pipe Nipples and Pipe

Pipe Nipples and Pipe

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

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

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

Rotary Unions

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

Pipe Fitting Clamps

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Pipe Collars

Clamp pipe passing through floors and walls

Pipe Joiners

Connect heavy and difficult-to-position gasketed pipe without powered equipment

Pipe Bleed Rings

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

Tube Fittings

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

10,536 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube Fitting Clamps

Tube Fitting Clamps

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

Tube Fitting Sleeves

Tube Fitting Sleeves

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

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

Tube End Plugs

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

Tube Fitting Sleeve and Nut Kits

Tube Fitting Sleeve and Nut Kits

Everything you need to create a tight seal between a metal tube and a Yor-Lok fitting

Tube Sampling Ports

Tube Sampling Ports

Take samples from sanitary tubing without pausing or contaminating your line

Hose Fittings

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

Hose Fitting Nuts

Hose Fitting Nuts

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

Hose End Caps

Cover the ends of hose to keep out dirt and debris

Hose Nozzle Swivels

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

Hose End Plugs

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

Hose Clamps

Connect hose to barbed hose fittings

Manifolds

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

Air Chucks

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

Pipe Repair Clamps

Pipe Repair Clamps

Fix small holes and cracks in pipe without taking your system apart

Junction Blocks

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

Hose Kink Absorbers

Hose Kink Absorbers

Prevent hose from kinking to ensure maximum flow and extend hose life

Pipeline Fluid Blockers

Pipeline Fluid Blockers

Temporarily block the flow between pipe flanges as you work downstream; also known as paddle blinds

Tube Crimpers

Create a leak-tight seal between tubing and fittings without heat or solder

Tube Repair Clamps

Tube Repair Clamps

Mend small holes, cracks, and full-circle breaks in tubing without dismantling your system

Tube Fitting Markers

Tube Fitting Markers

Snap onto push-to-connect fittings to identify different tubing lines

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

On-Off Valves

Start and stop flow through a line

Orifice Valves

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

Air Valves

Fill tanks, tires, and other pressurized equipment

Drain Valves

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

Valve Union Fittings

Valve Union Fittings

Mating parts join valves to a line for quick connection and removal

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Breather Vents

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

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Pressure-Relief Valves

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

Flowmeters

Measure the flow rate of a liquid or gas

Building and Machinery Hardware

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Flush-Fit Framing and Fittings

Flush-Fit Framing and Fittings

Create smooth stair and platform railings by sliding fittings into rails and tightening the screws

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Grease Fittings

Grease Fittings

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

Grease Fitting Junction Blocks

Grease Fitting Junction Blocks

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

Grease Fitting Cleaning Tools

Grease Fitting Cleaning Tools

Flush out old grease, dirt, and debris from clogged fittings

Grease Fitting Repair Tools

Grease Fitting Repair Tools

Remove and repair broken or clogged grease fittings and re-tap threaded holes

Grease Fitting Manifolds

Grease Fitting Manifolds

Lubricate multiple points with the same amount and type of grease using one grease fitting

Grease Fitting Caps

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

Grease Fitting Installation Tools

Grease Fitting Installation Tools

Tap to insert grease fittings in unthreaded holes

Grease Gun Tip Adapters

Grease Gun Tip Adapters

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

Grease Gun Nozzles

Grease Gun Nozzles

Replace nozzles on grease guns

Grease Gun Tips

Grease Gun Tips

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

Grease Gun Accessory Kits

Grease Gun Accessory Kits

Adapt and extend dispensing tips and install grease fittings with an assortment of tools

Grease Gun Couplers

Grease Gun Couplers

Extend the dispensing tip on grease guns to lubricate angled and hard-to-reach areas

Oil Fittings

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

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Standoff Caps

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

Quick-Release Pin Receptacles

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

Quick-Release Pin Retaining Caps

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

Retaining Rings

Retaining Rings

Hold components on a shaft

Pipe Wrenches

Serrated jaws grasp and turn pipe, conduit, and fittings

Electrical

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

Conduit Locknuts

Conduit Locknuts

Secure threaded conduit fittings to knockouts in electrical boxes

Conduit Support Clips

Conduit Support Clips

Mount flexible plastic conduit to walls and machines

Electrical Enclosure Plugs

Electrical Enclosure Plugs

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

Heat-Shrink Tubing End Caps

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look

Capacitor Boots

Capacitor Boots

Shield capacitors and wire connections to extend their service life and reduce accidental shocks

Facility and Grounds Maintenance

Drinking Fountain Replacement Parts

Drinking Fountain Replacement Parts

Replace nozzles, regulators, filters, handles, and other original manufacturer parts

Faucet Spout Thread Adapters

Faucet Spout Thread Adapters

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

Toilet Mounts

Secure toilet components with flanges and hardware kits

Toilet Seat Fasteners

Toilet Seat Fasteners

Secure toilet seat hinges to your toilet bowl

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Urinal Flanges

Connect a urinal to your drainage system

Sink Drain Fittings

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

Sink Drain Tailpieces

Sink Drain Tailpieces

Connect drains to P-traps and S-traps

Sink Drain Fitting Washers

Sink Drain Fitting Washers

Replace the washers in sink drain fittings

Manhole Riser Rings

Manhole Riser Rings

Raise a manhole cover to make it level with the surface

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Fabricating and Machining

Fixture Plate Plugs

Fixture Plate Plugs

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

Measuring and Inspecting

Pipe Size Measuring Kits

Pipe Size Measuring Kits

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

Material Handling

Vacuum Fittings

Vacuum Fittings

Connect to vacuum cups and compressed air to create suction; also known as venturi devices

Scaffold Clamps

Scaffold Clamps

Construct scaffolding and secure supports, such as railings

Safety Equipment

Fire Hydrants

Fight fires in areas around your facility that city-installed hydrants don’t reach

Fire Post Indicators

Fire Post Indicators

Open and close water supply valves for fire systems buried underground or in a wall

Sealing

Drain Gaskets

Create a watertight seal between your drain and fixture without the mess of plumber's putty

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valve Caps

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

Chimney Pipe and Fittings

Chimney Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

Containers, Storage, and Furniture

Stacking Caps and Targets

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

Dust Covers

Stretch over drums, pails, and other objects to keep out dust and debris

Communication

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

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