Office Chair Mechanism S3974 — Black Swivel Mechanism

The Office Chair Mechanism Model S3974 is a durable swivel component designed for chairs that use a tapered lift and a single-lever gas activation. It’s currently not in stock, but understanding its specs helps you compare compatibility and choose the right replacement approach, including our universal swivel option.

Features

• Finish and color: Black powder-coated housing for a clean, professional look that blends with most office chairs.
• Compatibility: Accepts standard tapered lift and supports S4513 back uprights measuring 2.25" (57.15 mm) wide.
• Operation: Single lever for gas cylinder activation, enabling easy height adjustment from a seated position.
• Angle design: 0-degree angle configuration for a straightforward, level seating feel.
• Documentation: Product drawings are provided in millimeters (mm); inches to millimeters conversion: 1 inch = 25.4 mm.

Benefits

For repair technicians, facilities managers, and anyone refreshing an office chair, S3974 offers a reliable reference point for compatibility. While the exact model isn’t currently available, its specifications map cleanly to common chair builds and to the universal swivel replacements we offer, helping minimize downtime and keep chairs in productive service.

Key benefits include smoother rotation and consistent height control, thanks to the single-lever gas-activated mechanism, and broad compatibility with standard back uprights and lift systems found in many office chairs. If your goal is to restore—or modernize—your seating, this mechanism helps you assess fit and plan a precise replacement strategy.