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Two brass hose quick-connect fittings, 9/16-18 thread, locking spring type

Victor Thermal Dynamics

Victor Thermal Dynamics 0656-0000 Hose Quick Connect Brass 9/16in-18 PK2

SKU CH-410G-QXXK7

A pair of brass quick-connect fittings with 9/16in-18 threads and UL Subject 1358 compliance for welding hose connections

  • Product typeWelding Parts & Supplies
  • Locking spring ensures secure gas connection
  • UL 1358 standard confirms safety compliance
  • Brass construction resists corrosion in welding environments
  • 9/16-18 thread fits common hose fittings
  • Two-piece pack provides spare or dual setup

Quick-connect hose fittings for welding

This pair of brass hose quick-connects is built for welding gas lines. The 9/16 in-18 thread matches standard torch and regulator ports. A locking spring mechanism holds the connection firm during use. They suit professional welders and maintenance crews who need fast, reliable hook-ups.

Brass construction with UL 1358 compliance

The brass bodies resist corrosion from common shielding gases and shop atmospheres. Locking-type springs engage automatically, reducing the chance of accidental disconnection while moving the torch. Meeting UL Subject 1358 means the design has been tested for the pressure and leak criteria that welding safety codes expect.

Two-piece pack ready for immediate installation

The package supplies two identical fittings so both ends of a hose assembly can be upgraded at once. No extra seals or tools are included, so installers should verify thread sealant compatibility with their gas type. California Proposition 65 notice applies to this product.

How it compares

Measured against everything we stock in Welding Equipment & Positioners, at today’s prices. Recalculated every night.

Price $101.99
Pricier than about 64% of the 1,978 comparable items (median $50.99).

Specifications

Product
Brand nameVICTOR
Product typeWelding Parts & Supplies

Questions about this item

What standard does the UL 1358 rating cover for these quick connects?

The UL Subject 1358 listing means the connectors meet the safety requirements for gas welding and cutting equipment, capping the pressure and leakage limits the fitting is tested to.

What hose thread size must match the 9/16in-18 fitting on each connector?

Each brass body has a 9/16‑18 right‑hand thread, so the hose or adapter you attach must carry the same 9/16‑18 thread to seal correctly.

How do you lock the spring‑loaded sleeve after pushing the hose on, and what step is often missed?

Push the hose barb fully into the connector until the spring sleeve snaps forward, then pull back sharply to confirm the lock — skipping the pull‑test leaves the joint unsecured.

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