Straight Fittings

Straight Fittings — New & Used

Straight fittings are essential fluid- and gas-system components used to connect pipes, tubes, hoses, and tubing sections in a straight line — ensuring leak-free flow and secure joins. These include straight couplings, hose adapters, compression fittings, threaded straight connectors, and barbed-end straight fittings for many fluid, pneumatic, and hydraulic systems.

At Surplus Select, we offer a broad selection of new and used OEM straight fittings — including metal, brass, stainless, and plastic couplings; threaded and compression-type straight connectors; hose-barb adapters; and replacement fittings for fluid, air, water, or chemical systems. Surplus pricing helps maintenance teams, OEMs, and repair facilities source reliable fittings affordably and maintain system integrity.

Price Match — We match any authorized distributor on identical in-stock parts, so you can source parts at surplus pricing with distributor-level assurance.

Trade-In Credit — Have quality new surplus items? Trade them in for store credit toward the parts you actually need.

Fast U.S. Shipping — Most orders ship same or next business day from our U.S. warehouse to keep your line running.

Find Your Straight Fitting Fast (Search-First)

Search by fitting type or part number (e.g., straight hose barb 1/2″, threaded pipe coupling 3/4″ NPT, compression straight fitting 10 mm).
No part number? Try specs like “brass straight coupling”, “stainless straight adapter 1/4″”, or “plastic straight fitting used”.
Need specific attributes? Add material, thread or hose size, port type, or pressure rating to refine the search.

Applications & Use Cases

Fluid & plumbing systems: Use straight fittings to connect sections of piping, tubing, or hose in water, coolant, oil, chemical, or air systems.
Hydraulic & pneumatic circuits: Securely join pressure lines, hose assemblies, valves, cylinders, and pumps using high-quality straight fittings.
HVAC, air, and pneumatic tools: Use in compressed-air lines, HVAC ducting, vacuum lines, and air-delivery systems requiring reliable joins.
Maintenance & repairs: Replace worn or damaged fittings to restore seal integrity and prevent leaks or system failures.
Custom builds & OEM equipment: Include surplus straight fittings in new machines, plumbing assemblies, or retrofit projects to save cost and ensure compatibility.

Why Buy Straight Fittings from Surplus Select

New & Used Options: Wide selection of OEM straight fittings — threaded, compression, hose-barb, metal and plastic — at surplus pricing.
Versatile Compatibility: Multiple materials, sizes, thread/hose types, and pressure ratings to suit varied plumbing, hydraulic, and pneumatic needs.
Cost-Effective Sourcing: Surplus inventory helps reduce acquisition and maintenance costs without sacrificing reliability or quality.
Fast Shipping: Most orders ship same or next business day so you can complete repairs or builds quickly and minimize downtime.