Hydraulic Fittings | McMaster-Carr

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System of Measurement

Pipe Size

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Shape

Material

Stainless Steel

Fitting Type

Reducing Adapter

Gender

Dash Size

Fitting Connection

O-Ring Face Seal

Quick Disconnect

Without Fittings

Thread Size

For Use With

Solid Particles

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (20% Concentration)

Tube OD

Maximum Pressure @ Temperature

15,000 psi @ 70° F

50 psi @ 72° F

75 psi @ 72° F

90 psi @ 72° F

100 psi @ 72° F

120 psi @ 72° F

125 psi @ 72° F

150 psi @ 72° F

170 psi @ 72° F

200 psi @ 72° F

220 psi @ 72° F

225 psi @ 72° F

230 psi @ 72° F

250 psi @ 72° F

300 psi @ 72° F

350 psi @ 72° F

360 psi @ 72° F

400 psi @ 72° F

Connects To

Railroad Tank Car

Tube Material

Stainless Steel

Flare Style

Internal Flared

Length

Quick-Disconnect Component

Specifications Met

British Standard

D.O.T. Compliant 49 CFR 571.106

Federal Specification

Coupling Size

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

1,000° F or greater

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Hose ID

REACH

RoHS

Compliant with Exemptions

How can we improve?

11,349 Products

Fluid Handling

Tube Fittings

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

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fitting Sleeves

Tube Fitting Sleeves

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

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 Supports

Slip into plastic and rubber tubing to prevent them from collapsing

Hose Fittings

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

Hose

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

Hose End Caps

Cover the ends of hose to keep out dirt and debris

Hose End Plugs

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

Pipe and Pipe Fittings

Pipe and Pipe Fittings

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

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

Junction Blocks

Junction Blocks

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

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Flow-Regulating Valves

Flow-Regulating Valves

Maintain the set flow rate of fluid through your system

Flow-Adjustment Valves

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Pressure-Relief Valves

Pressure-Relief Valves

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

Breather Vents

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

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 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

Grease Fitting Installation Tools

Grease Fitting Installation Tools

Tap to insert grease fittings in unthreaded holes

Power Transmission

Hydraulic Check Valves

Hydraulic Check Valves

Open to allow hydraulic fluid flow in one direction and close when flow stops or reverses

Pulley and Sprocket Bushings

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

Fastening and Joining

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

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