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Dexter Axle 006-320-00 Castellated Spindle Nut Retainer with Cotter Pin for 1" D-Flat Spindles

Manufacturer

Dexter Axle

<p>Dexter Axle has been a leading manufacturer of trailer axles and trailer brakes for over 60 years, serving the utility trailer, recreation vehicle, heavy duty, manufactured housing, agricultural, marine, and specialty trailer markets. Founded in 1960 in Elkhart, Indiana by Leonard Dexter, the company has grown from a small operation focused on manufactured housing and RV axles into the leading manufacturer of spring axles, torsion axles, heavy-duty, actuators, brakes, hub, drums, rotors, suspension components, doors and vents.</p><h3>Engineering Excellence and American Manufacturing</h3><p>Dexter operates 20 manufacturing facilities and employs over 3,800 people in the U.S. and Canada, employing state-of-the-art robotics, precision welding equipment, and automated machining processes. The company's commitment to quality is reflected in over 50 million axles installed over the last 60 years. This engineering-driven approach has resulted in industry-recognized innovations including the patented TORFLEX rubber torsion suspension system, E-Z Lube axle spindles, and the Nev-R-Adjust self-adjusting brake system.</p><h3>Comprehensive Trailer Component Solutions</h3><p>Dexter's product portfolio extends far beyond axles to encompass every critical system on a trailer. Their <a href="/7314-dexter-axle-other-brake-parts-50736">brake components and parts</a> are engineered for maximum stopping power and reliability, featuring piloted brake flanges and precision-machined mounting surfaces that ensure consistent performance across millions of miles. For smoother towing and cargo protection, Dexter offers advanced <a href="/7314-dexter-axle-shock-absorber-kit-48166">shock absorber kits</a> designed specifically for trailer suspension systems, delivering superior ride quality whether you're hauling recreational equipment or commercial cargo.</p><p>The company's <a href="/7314-dexter-axle-wheel-hub-14998">wheel hubs</a> represent the benchmark for durability in the trailer industry, available with multiple lubrication options including their innovative E-Z Lube system and pre-greased configurations that arrive ready to install. Complementing the hub assemblies, Dexter's <a href="/7314-dexter-axle-brake-drum-1744">brake drums</a> are manufactured to exacting tolerances for optimal brake contact and heat dissipation. Even seemingly minor components like <a href="/7314-dexter-axle-trailer-wiring-adapter-connector-2632">trailer wiring adapter connectors</a> receive the same attention to engineering detail, ensuring reliable electrical connections between tow vehicles and trailers in all weather conditions.</p><h3>Industry Trust and Professional Distribution</h3><p>Dexter's reputation among trailer manufacturers, fleet operators, and marine professionals stems from consistent product quality and comprehensive technical support. The company operates over 50 distribution centers across North America, providing rapid access to genuine Dexter components when maintenance schedules demand quick turnarounds. Whether you're maintaining a single recreational trailer or managing a commercial fleet, Dexter's combination of American manufacturing quality, proven engineering innovations, and extensive parts availability makes them the trusted choice for critical trailer running gear and braking systems.</p>

Part Number

006-320-00
07/13/2036 10:17 AM
Sale Price

$11.30

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Product Details

The Dexter Axle 006-320-00 is a castellated spindle nut retainer designed for Dexter trailer axles featuring a 1-inch D-Flat spindle end. This retainer is a key component of Dexter's updated D-Flat spindle cotter pin retention system, working in conjunction with the Dexter 006-191-00 hex spindle nut and a cotter pin (sold separately, Dexter P/N 019-022-00) to securely lock the spindle nut in place and prevent bearing looseness during operation.

The castellated design features precision-machined slots that accept a cotter pin, which engages the notches in the nut to prevent rotation and keep the nut properly positioned. This system delivers consistent, reliable bearing preload adjustment critical to safe trailer operation on the road.

Key Features:

  • Fits Dexter 2,000 lb. to 8,000 lb. trailer axles with 1-inch D-Flat spindle ends
  • Castellated retainer design used with a cotter pin for positive nut retention
  • Part of Dexter's D-Flat spindle cotter pin retention system (Sprung and Torflex axles)
  • Designed for use with Dexter 006-191-00 hex spindle jam nut
  • Manufactured by Dexter Axle, a leading trailer component brand with ISO 9001 certification
  • Compatible with Dexter #8 and #9 Torflex axles and all Dexter sprung axles up to 8,000 lbs.

The 006-320-00 retainer is an essential service part for maintaining the integrity of wheel hub assemblies on Dexter-equipped trailers. Always use with a proper cotter pin (P/N 019-022-00) and the matching Dexter 006-191-00 spindle nut. Cross-reference: replaces or supplements the 006-190-00 nut retainer in the updated cotter pin system.

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