NPT Caps | McMaster-Carr

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Thread Type

UN/UNF (SAE Straight)

System of Measurement

Pipe Size

Fitting Type

Reducing Adapter

Material

Hastelloy C276 Nickel

Stainless Steel

Gender

Pipe Material

Stainless Steel

Shape

Fitting Connection

Spec Image

Push to Connect

Spec Image

Quick Disconnect

Spec Image

Without Fittings

For Use With

Calcium Chloride

Pipe Schedule

Pressure Class

Flange Material

Stainless Steel

Drive Style

External 12-Point

External Octagon

External Square

Maximum Pressure @ Temperature

10 psi @ 70° F

20 psi @ 70° F

25 psi @ 70° F

50 psi @ 70° F

60 psi @ 70° F

65 psi @ 70° F

100 psi @ 70° F

125 psi @ 70° F

150 psi @ 70° F

200 psi @ 70° F

250 psi @ 70° F

415 psi @ 70° F

500 psi @ 70° F

675 psi @ 70° F

750 psi @ 70° F

1,000 psi @ 70° F

1,250 psi @ 70° F

1,400 psi @ 70° F

Length

Connects To

Body Shape

Attachment Type

Band-and-Buckle Clamp

Crimp-On Hose Ferrule

Worm-Drive Clamp

OD

0.111" to 0.177"

0.235" to 0.302"

0.298" to 0.365"

0.356" to 0.422"

0.468" to 0.545"

0.613" to 0.693"

0.687" to 0.785"

Color

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

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

3,221 Products

Fluid Handling

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Hose and Hose Fittings

Hose and Hose Fittings

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

Tube Fittings

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

Breather Vents

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

Pressure-Relief Valves

Pressure-Relief Valves

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

Sights

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

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Air Vent Valves

Air Vent Valves

Eliminate air pockets from fluid lines to maintain consistent flow and prevent surges

Building and Machinery Hardware

Protective Caps

Protective Caps

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

Protective Plugs

Protective Plugs

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

Containers, Storage, and Furniture

Drum Plug Caps

Access inside drums to fill them

Drum Plugs

Seal drum lid openings

Drum Locks

Secure drum lids and openings to prevent tampering

Electrical Power, Networking, and Controlling

Electrical Enclosure Plugs

Electrical Enclosure Plugs

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

Electrical Enclosure Drains

Electrical Enclosure Drains

Release moisture to keep components dry

Outlet Box Covers

Outlet Box Covers

Enclose wiring for outlets and switches or block off unused components

Solenoid Valve Sockets

Solenoid Valve Sockets

Pair with plugs or receptacles to connect solenoid components

Latching Connectors

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

Coaxial Receptacles

Coaxial Receptacles

Install in walls and panels and pair with plugs to make coaxial connections

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 Manifolds

Grease Fitting Manifolds

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

Grease Fitting Repair Tools

Grease Fitting Repair Tools

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

Facility and Grounds Maintenance

Sink Drains

Empty liquids from sinks into sewer lines

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