Authorized DK-Lok Distributor in California

Stocked in San Pedro at the Port of Los Angeles · Serving Los Angeles, Long Beach and San Diego

Your local source for DK-Lok

A-Best Industrial Inc. Fittings, Valves, and Tubing is an authorized DK-Lok distributor. DK-Lok fittings and valves are stocked in San Pedro in stainless steel and brass, near the Port of Los Angeles, and are available in exotic alloys such as Hastelloy, titanium, Inconel and Incoloy. An American-made DK-Lok option is also available. Utilities, refineries, shipyards, contractors and OEMs across California count on us for fast answers, fast delivery and people who know the product. Not sure which fitting or valve fits your application? Call us and we'll walk through it with you.

DK-Lok Distributor Serving California

From our shop at 1911 N. Gaffey Street in San Pedro, we keep a large local inventory of DK-Lok tube fittings, valves and manifolds, plus stainless steel tubing and hose. Pick up at will-call, or we ship the same day we receive your PO. We're available 24/7 for emergencies at (310) 892-3503.

San Pedro & Port of Los AngelesOur shop is at the World Port of Los Angeles. Terminal, vessel and maintenance crews can pick up parts or have a hose built while they wait.
Los Angeles & Port of Long BeachUtilities, refineries, contractors, OEMs and port operators across Los Angeles and Long Beach get same-day shipping and will-call pickup.
San Diego, US Navy & ShipyardsWe supply US Navy activities in San Diego directly, along with shipyards and marine contractors. SAM registered, UEI L95CRSL3KKJ7, CAGE 5ZT61.
Equipment HosesHydraulic hose for trucks, cranes and forklifts, and air hose for jackhammers and tools, built in San Pedro. See hose assemblies.

Shipyard and Navy supply

Shipyard and Navy work needs the right material and the paperwork to prove it. We supply DFARS compliant tube fittings and stainless steel tubing for military applications, with material certs to your requirements. Our hydraulic hose is US Coast Guard approved. DK-Lok tube fittings are interchangeable and intermixable with Swagelok and Parker A-Lok, so they can go into existing systems. See the ASTM F1387 intermix test.

Stack testing and CEMS

Source testers and CEMS technicians across Southern California can restock fittings, quick connects, valves and PTFE or stainless tubing at will-call in San Pedro. See our stack testing supplies.

Frequently asked questions

Is A-Best an authorized DK-Lok distributor in California?
Yes. A-Best Industrial Inc. Fittings, Valves, and Tubing is an authorized DK-Lok distributor, with DK-Lok fittings and valves stocked in San Pedro.

Do you serve the Port of Los Angeles and the Port of Long Beach?
Yes. Our shop is at the Port of Los Angeles. Crews can pick up at will-call, and orders ship the same day we receive your PO.

Do you supply the US Navy in San Diego?
Yes. We supply US Navy activities in San Diego directly, as well as shipyards and marine contractors. We're SAM registered and supply DFARS compliant material.

Can you build hoses for trucks, cranes and forklifts?
Yes. We build hydraulic hose assemblies for trucks, cranes and forklifts, and air hose for jackhammers and tools, usually while you wait.

Outside California? See who we serve.

Works with the Brands You Already Use

DK-Lok tube fittings are guaranteed 100% interchangeable and intermixable with both Swagelok® and Parker® tube fittings. A-Best Industrial Inc. Fittings, Valves, and Tubing also supplies other brands, such as Swagelok® and Parker®, depending on your project's needs. Tell us what your spec calls for and we'll get you the right parts.

Swagelok® and Parker® are registered trademarks of their respective owners.

DK-Lok Product Lines

  • Compression Tube Fittings

    Two-ferrule tube fittings in fractional and metric sizes. Single ferrule design available as well.

  • Instrument Pipe & Weld Fittings

    Pipe and weld fittings for instrument lines.

  • Needle Valves

    Fine flow control and shutoff for instrument lines and gauges.

  • Ball & Plug Valves

    Quick quarter-turn shutoff for gas and liquid service.

  • Check Valves

    Keep flow moving in one direction.

  • Relief Valves

    Protect your system from overpressure.

  • Bellows Valves

    Packless sealing for demanding service.

  • Metering Valves

    Precise, repeatable low-flow control.

  • Manifolds

    Instrument manifolds for transmitters and gauges.

  • Quick Connects

    Fast connect and disconnect without tools.

  • DK-Lok Clean Fittings

    For high-purity lines.

  • Ultra-Torr Vacuum Fittings

    For vacuum service.

  • Exotic Alloy Fittings & Valves

    DK-Lok fittings and valves in Hastelloy, titanium, Inconel, Incoloy and other alloys for corrosive, high-temperature and high-pressure service. Call for availability.

Why Buy DK-Lok from A-Best Industrial Inc. Fittings, Valves, and Tubing

  • Local Stock

    DK-Lok fittings and valves on the shelf in San Pedro, with counter pickup or nationwide shipping.

  • Free Safety Training Course

    A free Safety training course for new and existing customers, covering tube fitting installation and tube bending. Learn more.

  • Certified Supplier

    MBE, DBE, NMSDC, SCMSDC and CPUC certified. See our certifications.

DK-Lok Catalogs

View all catalogs
  • DK-Lok Condensed Catalog

    Fittings, valves and manifolds in one book.

  • Compression Tube Fittings

    Two-ferrule tube fittings, fractional and metric.

  • Instrument Pipe & Weld Fittings

    Pipe and weld fittings for instrument lines.

  • K Series JIC Fittings

    SAE J514 37° flared tube fittings.

  • DO Series O-Ring Face Seal

    O-ring face seal fittings.

  • UHP Fittings

    Ultra high purity fittings.

  • V15 Needle Valves

    Needle valves for instrument and gauge lines.

  • VB16 & V46A Needle Valves

    Integral bonnet and hex body needle valves.

  • V81 Ball Valves

    Quarter-turn ball valves.

  • V86 & VC86 Ball Valves

    Ball valves, including CNG/NGV service.

  • Check Valves

    V33, VP33, VA33 and VH36 check valves.

  • V63 & V66 Relief Valves

    Proportional relief valves.

  • V13W Bellows Valves

    Packless bellows sealed valves.

  • VM Metering Valves

    Precise low-flow control.

  • V46 & V56 Manifolds

    Gauge root valves and instrument manifolds.

  • Quick Connects

    DQ, DF and DQVP quick connectors.

Need a Quote on DK-Lok?

Call 310-833-3353, email sales@abesttube.com, or stop by 1911 N. Gaffey Street, Suite D, San Pedro, CA 90731. Open Monday–Friday, 8:00 AM–5:00 PM Pacific, with after-hours emergency service.