Hydraulic Fitting Identification Guide & Wiki

Toolbox Talk: What Hydraulic Fittings Actually Do

The starting point. A no-fluff guide to the job of a fitting, and why using the right one is the difference between uptime and a mess on the floor.

Field Guide: How to ID Any Fitting That Hits Your Bench

Got a mystery fitting? This guide gives you the tools—calipers, thread gauges, and a little know-how—to identify it and get the right replacement ordered fast.

Decoding Dash Sizes: What "-8" Actually Means

Dash size is just shop talk for sixteenths of an inch. A -8 is 8/16", or 1/2". This guide cracks the simple code so you can order the right part the first time.

The Showdown: JIC vs. ORB vs. ORFS

Three of the most common fittings go head-to-head. We break down how they seal, the pressure they handle, and the right job for each one.

Related Products: JIC Fittings, SAE ORB, ORFS Fittings

Why Pros Trust ORFS (O-Ring Face Seal) Fittings

For machines that shake and rattle, ORFS is the top-tier solution for zero leaks. We cover the tech and why it's worth the money for critical systems.

The JIC Flare: An Honest Look at the Good, the Bad, and the Leaky

JIC fittings are everywhere. We get into the weeds on why they're popular, how to install them right, and—more importantly—how to keep them from failing.

The ORB Standard: Your Guide to O-Ring Boss Ports

A massive upgrade from tapered pipe threads. This is the complete guide to SAE O-Ring Boss (ORB) fittings—how they provide a leak-free port seal and where to use them.

The NPT Playbook: Making the Old Workhorse Seal Right

National Pipe Thread has been around forever. Here’s a no-BS breakdown of how it’s supposed to work, why it leaks, and how to get it right the first time.

Related Products: NPT Pipe Fittings

Field Alert: Why You NEVER Mix NPT and BSPT Threads

They look damn near identical, but American (NPT) and British (BSPT) pipe threads are not the same. This guide shows you how to spot the difference before you wreck something.

The Bottom Line on Stainless Steel Fittings

When does it actually make sense to pay more for stainless? We cover the grades (316 vs. 304) and the jobs where it’s not a cost, but a damn good investment.

Flange Fittings: Code 61 vs. Code 62

For big lines and serious pressure, you need flanges. This guide explains the critical difference between standard duty (Code 61) and heavy duty (Code 62) SAE flanges.

The DIN 2353 "Bite-Type" Fitting Explained

The standard on most European and Asian equipment. This guide dives into how DIN 2353 / ISO 8434-1 metric compression fittings work and why they're so reliable.

How to Properly Seal NPT Threads: Tape vs. Dope

A leaky NPT fitting is an installation failure. This guide covers the right way to use sealant to get a leak-free joint without contaminating your hydraulic system.

The #1 Mistake That Kills JIC Fittings (And How to Stop Making It)

The fastest way to make a JIC fitting leak is to overtighten it. Here are the simple rules for getting it right without cracking the flare.

The Real Story: Are AN and JIC Fittings the Same? (Spoiler: No)

They look the same, and they have the same flare angle, but AN (military) and JIC (industrial) fittings are not the same. Here’s why you don’t mix them.

Can You Mix Fitting Brands? (The Blunt Answer)

Can you use a Parker fitting with a Gates hose? As long as they are built to the same industry standard (e.g., SAE J514), the answer is yes. This guide explains the rules.

Toolbox Talk: Hydraulic Fitting Safety

A failed fitting isn't just a leak; it's a high-pressure injection hazard that can kill you. A straight-shooting guide to safe installs and protecting your crew.

Assembling ORFS Fittings: Torque Guidelines

A step-by-step guide to ORFS assembly, O-ring handling, tightening guidance, and the practices that help produce a leak-free face seal.

Beaded Hose Fittings for Low-Pressure Applications

How beaded hose fittings work in low-pressure hydraulic and automotive systems, including practical installation considerations.

Why NPSM Swivel Fittings Prevent Hose Twist

Learn how NPSM swivel connections simplify installation, reduce hose twist, and help prevent avoidable leaks in hydraulic hose assemblies.

New Materials for Hydraulic Components

An overview of advanced alloys, composites, polymers, smart coatings, and additive manufacturing developments relevant to fluid-power components.

Latest Developments in the Fluid Power Industry

A review of market, supply-chain, electrification, automation, and AI developments influencing the fluid-power industry.

Flange vs. Threaded Fittings: When to Use Each

Compare flange and threaded connections for high-pressure, large-bore, and high-vibration hydraulic applications.

Hydraulic Adapter Pressure & Temperature Guide

Understand how system pressure and temperature affect adapter bodies, sealing elements, and connection selection.

Hydraulic Adapter Sealing Technologies

Compare the sealing mechanisms used by NPT, JIC, ORB, ORFS, and NPSM connections in high-pressure systems.

Steel vs. Stainless Steel vs. Brass Fittings

Select hydraulic fitting materials by pressure, temperature, fluid compatibility, corrosion exposure, and application environment.

How to Identify a Reliable Hydraulic Fittings Manufacturer

A distributor-focused guide to evaluating manufacturing quality, technical capability, consistency, and supply-chain reliability.

Innovations Driving Hydraulic Efficiency

Explore smart systems, IoT integration, electrification, energy recovery, and material developments improving hydraulic efficiency.

Installing Hydraulic Flange Fittings

Best practices for SAE Code 61 and Code 62 flange installation, including O-ring handling, bolt torque, and tightening sequence.

Material Matters: Steel, Stainless, or Brass?

Compare carbon steel, stainless steel, and brass fittings by pressure, corrosion resistance, temperature, cost, and application.

NPSM vs. NPT: Straight vs. Tapered Threads

Understand how NPSM straight threads and NPT tapered threads differ in function, sealing method, and suitable applications.

NPT Pipe Fittings 101

A practical introduction to NPT tapered thread geometry, sealing behavior, common applications, and installation practices.

ORB vs. NPT: Upgrading the Port Seal

Compare tapered NPT threads with SAE O-Ring Boss ports and learn why ORB can provide more consistent hydraulic sealing.

ORFS vs. JIC: Choosing a Leak-Resistant Connection

Compare O-Ring Face Seal technology with traditional 37-degree JIC flare connections for demanding hydraulic systems.

Best Practices for Preventing Hydraulic Leaks

Reduce leakage risk through fitting selection, careful installation, sound system design, inspection, and preventive maintenance.

Preventing Leaks with ORB Fittings

Installation, O-ring handling, tightening, and maintenance guidance for reliable SAE O-Ring Boss connections.

Sustainable Fluid Power Technology Trends

Explore energy-efficient design, electrification, biodegradable fluids, smart systems, and other sustainability developments.

Troubleshooting NPT Fitting Leaks

Identify common causes of NPT connection leaks and apply practical solutions for thread engagement, sealant, and assembly problems.

Understanding NPSM Pipe Swivel Fittings

Learn how NPSM female swivels use straight threads and a 30-degree cone seat, plus where these connections are commonly applied.

When to Use JIC 37° Flare Fittings

Review the advantages, limitations, and common applications of JIC connections, including when another sealing system may fit better.

Wholesaler's Guide to Leak-Free Connections

A practical overview of NPT, JIC, ORB, ORFS, and NPSM connections for wholesalers specifying dependable hydraulic fittings.